New release s390-tools-2.44.0

Signed-off-by: Steffen Eiden <seiden@linux.ibm.com>

.gitignore

@@ -102,9 +102,11 @@ lsstp/_lsstp
 lsstp/lsstp.bash
 mon_tools/mon_fsstatd
 mon_tools/mon_procd
-opticsmon/opticsmon
-opticsmon/_opticsmon
-opticsmon/opticsmon.bash
+zpcimon/zpcimon
+zpcimon/zpcimon.bash
+zpcimon/_zpcimon
+zpcimon/opticsmon.bash
+zpcimon/_opticsmon
 osasnmpd/osasnmpd
 qetharp/qetharp
 qethqoat/qethqoat

CHANGELOG.md

@@ -1,6 +1,32 @@
 Release history for s390-tools (MIT version)
 --------------------------------------------
 
+* __v2.44.0 (2026-07-31)__
+
+  For Linux kernel version: 7.2
+
+  Changes of existing tools / libraries:
+  - create-sehdr: Enable quantum safe keys usage
+  - dbginfo.sh: Let zpcimon log both optical module and SMART data
+  - libutil/util_fmt: Add util_fmt_type_to_name()
+  - nvmemon: Skip SCLP on NVMes with non-IBM subsystem vendor ID
+  - opticsmon: zpcimon: Rename opticsmon to zpcimon
+  - pvattest: Enable quantum safe keys usage
+  - pvimg: Add '--flags <...>' and '--disable-flags <...>' option
+  - pvimg: Enable quantum safe keys usage
+  - pvsecret: Enable quantum safe keys usage
+  - pvverify: Enable quantum safe keys usage
+  - zmemtopo: Add CLI option to filter partitions by name
+  - zpcimon: Allow setting output format using --format CLI option
+  - zpcimon: Monitor for hotplug of NVMes to trigger SMART collection
+
+  Bug Fixes:
+  - opticsmon: Fix wrong size check for OPTICS_QSFP28_LOS_IMPLEMENTED_OFFSET
+  - opticsmon: Handle error return of ethtool_nl_connect()
+  - opticsmon: Fix error path free of struct optics in ethtool_nl_get_optics()
+  - opticsmon: Close epoll fd in monitor_wait_loop()
+  - opticsmon: Fix wrong JSON print for tx_fault
+
 * __v2.43.1 (2026-07-22)__
 
   For Linux kernel version: 7.1

Makefile

@@ -15,7 +15,7 @@ TOOL_DIRS = zipl zdump fdasd dasdfmt dasdview tunedasd \
 	   vmcp man mon_tools dasdinfo vmur cpuplugd ipl_tools \
 	   ziomon iucvterm hyptop cmsfs-fuse qethqoat zfcpdump zdsfs cpumf \
 	   systemd hmcdrvfs cpacfstats zdev dump2tar zkey netboot etc zpcictl \
-	   lsstp hsci hsavmcore chreipl-fcp-mpath ap_tools rust opticsmon \
+	   lsstp hsci hsavmcore chreipl-fcp-mpath ap_tools rust zpcimon \
 	   zpwr zmemtopo
 
 else

README.md

@@ -316,7 +316,7 @@ build options:
 | glibc-static | `HAVE_LIBC_STATIC` | zfcpdump                               |
 | openssl      | `HAVE_OPENSSL`     | zkey, libekmfweb, libkmipclient,       |
 |              |                    | zgetdump, rust/pvattest, rust/pvimg,   |
-|              |                    | zgetdump/pvsecret, opticsmon           |
+|              |                    | zgetdump/pvsecret, zpcimon             |
 | cryptsetup   | `HAVE_CRYPTSETUP2` | zkey-cryptsetup                        |
 | json-c       | `HAVE_JSONC`       | zkey-cryptsetup, libekmfweb,           |
 |              |                    | libkmipclient                          |
@@ -325,8 +325,9 @@ build options:
 |              |                    | rust/pvattest, rust/pvsecret,          |
 | libxml2      | `HAVE_LIBXML2`     | libkmipclient                          |
 | systemd      | `HAVE_SYSTEMD`     | hsavmcore                              |
-| libudev      | `HAVE_LIBUDEV`     | cpacfstatsd                            |
-| libnl3       | `HAVE_LIBNL3`      | opticsmon                              |
+| libudev      | `HAVE_LIBUDEV`     | cpacfstatsd, zpcimon                   |
+| libnl3       | `HAVE_LIBNL3`      | zpcimon                                |
+| libnvme      | `HAVE_LIBNVME`     | zpcimon                                |
 
 This table lists additional build or install options:
 
@@ -374,11 +375,11 @@ the different tools are provided:
 
   The runtime requirements are: openssl-libs (>= 1.1.1) and libcurl.
 
-* opticsmon:
-  For building opticsmon OpenSSL and the Netlink Library Suite (libnl3) are
-  required.
-  Tip: you may skip the opticsmon build by adding
-  `HAVE_OPENSSL=0` or `HAVE_LIBNL3=0`
+* zpcimon:
+  For building zpcimon OpenSSL, the Netlink Library Suite (libnl3),
+  and libnvme are required.
+  Tip: you may skip the zpcimon build by adding
+  `HAVE_OPENSSL=0` or `HAVE_LIBNL3=0` or `HAVE_LIBNVME=0`.
 
 * osasnmpd:
   You need at least the NET-SNMP 5.1.x package (net-snmp-devel.rpm)

common.mak

@@ -32,8 +32,8 @@ endif
 # The variable "DISTRELEASE" should be overwritten in rpm spec files with:
 # "make DISTRELEASE=%{release}" and "make install DISTRELEASE=%{release}"
 VERSION            := 2
-RELEASE            := 43
-PATCHLEVEL         := 1
+RELEASE            := 44
+PATCHLEVEL         := 0
 DISTRELEASE        := build-$(shell date +%Y%m%d)
 S390_TOOLS_RELEASE := $(VERSION).$(RELEASE).$(PATCHLEVEL)-$(DISTRELEASE)
 export S390_TOOLS_RELEASE

include/lib/pci_list.h

@@ -17,6 +17,9 @@
 
 #include "util_list.h"
 
+#define PCI_BDF_LEN 13 /* DDDD:BB:dd.f\0 */
+#define PCI_VENDOR_ID_IBM 0x1014
+
 enum zpci_pft {
 	ZPCI_PFT_UNCLASSIFIED = 0x00,
 
@@ -65,6 +68,9 @@ struct zpci_dev {
 	bool uid_is_unique;
 	/* Configuration state 0 - Standby, 1 Configured */
 	bool conf;
+	/* Common PCI attributes */
+	uint16_t subsystem_vendor;
+	uint16_t subsystem_device;
 
 	/* Associated netdevs if any */
 	int num_netdevs;
@@ -96,4 +102,6 @@ operstate_t zpci_operstate_from_str(const char *oper_str);
 struct zpci_dev *zpci_find_by_netdev(struct util_list *zpci_list, char *netdev_name,
 				     struct zpci_netdev **netdev);
 
+char *zpci_get_nvme_device_node(const char *pci_addr);
+
 #endif /* LIB_ZPCI_PCI_LIST_H */

include/lib/pci_sclp.h

@@ -21,9 +21,11 @@
 #define SCLP_ERRNOTIFY_AQ_DECONF		1
 #define SCLP_ERRNOTIFY_AQ_REPORT_ERR		2
 #define SCLP_ERRNOTIFY_AQ_OPTICS_DATA		3
+#define SCLP_ERRNOTIFY_AQ_NVME_SMART_DATA	4
 
 #define SCLP_ERRNOTIFY_ID_ZPCICTL		0x4713
 #define SCLP_ERRNOTIFY_ID_OPTICSMON		0x4714
+#define SCLP_ERRNOTIFY_ID_NVMEMON		0x4715
 
 #define SCLP_ERRNOTIFY_DATA_SIZE		4054
 

include/lib/util_fmt.h

@@ -157,6 +157,16 @@ void util_fmt_exit(void);
  */
 bool util_fmt_name_to_type(const char *name, enum util_fmt_t *type);
 
+/**
+ * util_fmt_type_to_name() - Get name of given format type identifier.
+ * @type: Format type identifier
+ *
+ * Get the name corresponding to the given format type identifier.
+ *
+ * Return: name of the format type
+ */
+const char *util_fmt_type_to_name(enum util_fmt_t type);
+
 /**
  * util_fmt_set_indent() - Set indentation parameters.
  * @base    : Base indentation level to apply to all output lines (default 0)

include/lib/util_time.h

@@ -19,6 +19,8 @@
 
 #define MSEC_PER_SEC	1000L
 
+#define SEC_PER_DAY	(24 * 60 * 60)
+
 /**
  * Convert nanoseconds to microseconds
  *

include/lib/zt_common.h

@@ -72,6 +72,11 @@
 #define __section(x) __attribute__((__section__(#x)))
 #define __noinline __attribute__((__noinline__))
 #define __big_endian
+#ifdef __CHECKER__
+# define __force __attribute__((force))
+#else
+# define __force
+#endif
 /* The Linux kernel (in stddef.h) and glibc (sys/cdefs.h) define
  * __always_inline. Therefore undefine it first to allow the headers
  * to be included first.

libutil/util_fmt.c

@@ -89,11 +89,26 @@ static const struct {
 	const char *name;
 	enum util_fmt_t fmt;
 } formats[] = {
-	{ "json", FMT_JSON },
-	{ "json-seq", FMT_JSONSEQ },
-	{ "jsonl", FMT_JSONL },
-	{ "pairs", FMT_PAIRS },
-	{ "csv",  FMT_CSV },
+	[FMT_JSON] = {
+		.name = "json",
+		.fmt = FMT_JSON
+	},
+	[FMT_JSONSEQ] = {
+		.name = "json-seq",
+		.fmt = FMT_JSONSEQ
+	},
+	[FMT_JSONL] = {
+		.name = "jsonl",
+		.fmt = FMT_JSONL
+	},
+	[FMT_PAIRS] = {
+		.name = "pairs",
+		.fmt = FMT_PAIRS
+	},
+	[FMT_CSV] = {
+		.name = "csv",
+		.fmt = FMT_CSV
+	},
 };
 
 /* Signal mask for blocking INT and TERM signals. */
@@ -112,6 +127,11 @@ bool util_fmt_name_to_type(const char *name, enum util_fmt_t *type)
 	return false;
 }
 
+const char *util_fmt_type_to_name(enum util_fmt_t type)
+{
+	return formats[type].name;
+}
+
 bool util_fmt_is_json(enum util_fmt_t type)
 {
 	switch (type) {

libzpci/libzpci_example.c

@@ -12,13 +12,17 @@ static void zpci_print(struct zpci_dev *zdev)
 	int i;
 
 	if (!zdev->conf) {
-		printf("fid: %8x address: %s\n", zdev->fid, pci_addr);
+		printf("fid:\t%4x address: %s\n", zdev->fid, pci_addr);
 	} else {
-		printf("fid: %8x address: %s uid: %4x%s pchid: %4x vfn: %4d port: %1d pft: %s ",
+		printf("fid:\t%4x address: %s uid: %4x%s pchid: %4x vfn: %4d\n",
 		       zdev->fid, pci_addr, zdev->uid, (zdev->uid_is_unique) ? " (unique)" : "",
-		       zdev->pchid, zdev->vfn, zdev->port, zpci_pft_str(zdev));
+		       zdev->pchid, zdev->vfn);
+		printf("\n");
+		printf("\tport: %1d pft: %s subsystem_device: %4x subsystem_vendor: %4x\n",
+		       zdev->port, zpci_pft_str(zdev), zdev->subsystem_device,
+		       zdev->subsystem_vendor);
 		if (zdev->num_netdevs) {
-			printf("netdevs: ");
+			printf("\tnetdevs: ");
 			for (i = 0; i < zdev->num_netdevs; i++) {
 				printf("%s (%s)", zdev->netdevs[i].name,
 				       zpci_operstate_str(zdev->netdevs[i].operstate));

libzpci/pci_list.c

@@ -20,6 +20,7 @@
 #include "lib/util_list.h"
 #include "lib/util_path.h"
 #include "lib/util_scandir.h"
+#include "lib/util_sys.h"
 
 /**
  * Get the function type name for the given device
@@ -137,7 +138,7 @@ const char *zpci_operstate_str(operstate_t state)
 static int zpci_populate_from_slot_dir(struct zpci_dev *zdev, const char *slot_dir,
 				       const char *slot_name)
 {
-	char buf_addr[11]; /* "dddd:bb:dd\0" */
+	char buf_addr[PCI_BDF_LEN];
 	uint8_t bus, df;
 	uint32_t domain;
 	int val, rc;
@@ -261,6 +262,16 @@ static int zpci_populate_from_dev_dir(struct zpci_dev *zdev)
 		goto out_path;
 	zdev->pft = val;
 
+	rc = util_file_read_i(&val, 16, "%s/subsystem_device", path);
+	if (rc)
+		goto out_path;
+	zdev->subsystem_device = val;
+
+	rc = util_file_read_i(&val, 16, "%s/subsystem_vendor", path);
+	if (rc)
+		goto out_path;
+	zdev->subsystem_vendor = val;
+
 	if (util_path_is_readable("%s/net", path)) {
 		rc = zpci_populate_netdevices(zdev, path);
 		if (rc)
@@ -387,3 +398,46 @@ struct zpci_dev *zpci_find_by_netdev(struct util_list *zpci_list, char *netdev_n
 	}
 	return NULL;
 }
+
+/**
+ * Get the NVMe device file name given a PCI address
+ *
+ * This function retrieves the NVMe device file "/dev/nvmeX"
+ * for a given PCI address. The device name can be used to construct
+ * the path /dev/nvmeX which is the NVMe's controller's character
+ * device used for example to retrieve S.M.A.R.T. data.
+ *
+ * @param[in]	pci_addr	The "DDDD:bb:dd.f" format PCI address
+ *
+ * @return The NVMe device file name if one is found NULL otherwise
+ */
+char *zpci_get_nvme_device_node(const char *pci_addr)
+{
+	char *path, *dev = NULL;
+	char dev_addr[PCI_BDF_LEN];
+	struct dirent **de_vec;
+	int count, i;
+
+	path = util_path_sysfs("bus/pci/devices/%s/nvme", pci_addr);
+	count = util_scandir(&de_vec, alphasort, path, "nvme*");
+	if (count == -1) {
+		warnx("Could not read directory %s: %s", path, strerror(errno));
+		goto exit_path;
+	}
+
+	for (i = 0; i < count; i++) {
+		util_asprintf(&dev, "/dev/%s", de_vec[i]->d_name);
+		if (util_sys_get_dev_addr(dev, dev_addr) != 0)
+			goto free_continue;
+		if (strcmp(dev_addr, pci_addr) == 0)
+			break;
+free_continue:
+		free(dev);
+		dev = NULL;
+	}
+
+	util_scandir_free(de_vec, count);
+exit_path:
+	free(path);
+	return dev;
+}

opticsmon/opticsmon.c

@@ -1,407 +0,0 @@
-/*
- * opticsmon - Report optics monitoring data to firmware
- *
- * Copyright IBM Corp. 2024
- *
- * s390-tools is free software; you can redistribute it and/or modify
- * it under the terms of the MIT license. See LICENSE for details.
- */
-#include <stdio.h>
-#include <stdlib.h>
-#include <stdbool.h>
-#include <errno.h>
-
-#include <sys/epoll.h>
-#include <sys/signalfd.h>
-#include <signal.h>
-#include <sys/timerfd.h>
-#include <time.h>
-#include <linux/if.h>
-
-#include "lib/util_list.h"
-#include "lib/pci_list.h"
-#include "lib/util_prg.h"
-#include "lib/util_opt.h"
-#include "lib/util_fmt.h"
-#include "lib/util_libc.h"
-
-#include <openssl/evp.h>
-
-#include "ethtool.h"
-#include "link_mon.h"
-#include "optics_info.h"
-#include "optics_sclp.h"
-#include "opticsmon_cli.h"
-
-#define API_LEVEL 1
-
-struct options {
-	bool monitor;
-	bool report;
-	bool module_info;
-	bool quiet;
-
-	uint32_t interval_seconds;
-};
-
-struct opticsmon_ctx {
-	struct options opts;
-	struct ethtool_nl_ctx ethtool_ctx;
-	struct link_mon_nl_ctx lctx;
-	struct util_list *zpci_list;
-};
-
-static const struct util_prg prg = {
-	.desc = "Use opticsmon to monitor the health of the optical modules\n"
-		"of directly attached PCI based NICs",
-	.copyright_vec = { {
-				   .owner = "IBM Corp.",
-				   .pub_first = 2024,
-				   .pub_last = 2024,
-			   },
-			   UTIL_PRG_COPYRIGHT_END }
-};
-
-static void parse_cmdline(int argc, char *argv[], struct options *opts)
-{
-	uint32_t seconds;
-	int cmd, ret;
-
-	util_prg_init(&prg);
-	util_opt_init(opt_vec, NULL);
-
-	do {
-		cmd = util_opt_getopt_long(argc, argv);
-
-		switch (cmd) {
-		case 'm':
-			opts->monitor = true;
-			break;
-		case 'r':
-			opts->report = true;
-			break;
-		case 'q':
-			opts->quiet = true;
-			break;
-		case OPT_DUMP:
-			opts->module_info = true;
-			break;
-		case 'i':
-			ret = sscanf(optarg, "%u", &seconds);
-			if (ret != 1) {
-				fprintf(stderr,
-					"Failed to parse interval argument \"%s\" as seconds\n",
-					optarg);
-				exit(EXIT_FAILURE);
-			}
-			if (seconds < 86400)
-				opts->interval_seconds = seconds;
-			break;
-		case 'h':
-			util_prg_print_help();
-			util_opt_print_help();
-			exit(EXIT_SUCCESS);
-		case 'v':
-			util_prg_print_version();
-			exit(EXIT_SUCCESS);
-		case -1:
-			/* End of options string */
-			break;
-		}
-	} while (cmd != -1);
-}
-
-static int module_info_pair(struct optics *oi)
-{
-	size_t b64_calclen, b64len;
-	int rc = EXIT_SUCCESS;
-	char *b64;
-
-	b64_calclen = (oi->size / 3) * 4;
-	if (oi->size % 3 > 0)
-		b64_calclen += 4;
-
-	b64 = util_zalloc(b64_calclen + 1); /* adds NUL byte */
-	b64len = EVP_EncodeBlock((unsigned char *)b64, oi->raw, oi->size);
-	if (b64len != b64_calclen) {
-		fprintf(stderr, "encoding base64 via openssl failed\n");
-		rc = EXIT_FAILURE;
-		goto out;
-	}
-	util_fmt_pair(FMT_QUOTE, "module_info", b64);
-out:
-	free(b64);
-	return rc;
-}
-
-static void optics_json_print(struct opticsmon_ctx *ctx, struct zpci_netdev *nd, struct optics *oi)
-{
-	util_fmt_obj_start(FMT_DEFAULT, "netdev");
-	util_fmt_pair(FMT_QUOTE, "name", nd->name);
-	util_fmt_pair(FMT_QUOTE, "operstate", zpci_operstate_str(nd->operstate));
-	util_fmt_obj_start(FMT_DEFAULT, "optics");
-	util_fmt_pair(FMT_QUOTE, "type", optics_type_str(optics_type(oi)));
-	util_fmt_pair(FMT_QUOTE, "rx_los", optics_los_str(optics_rx_los(oi)));
-	util_fmt_pair(FMT_QUOTE, "tx_los", optics_los_str(optics_tx_los(oi)));
-	util_fmt_pair(FMT_QUOTE, "tx_fault", optics_los_str(optics_rx_los(oi)));
-	if (ctx->opts.module_info)
-		module_info_pair(oi);
-	util_fmt_obj_end();
-	util_fmt_obj_end();
-}
-
-static int dump_adapter_data(struct opticsmon_ctx *ctx, struct zpci_dev *zdev)
-{
-	struct optics **ois;
-	int num_ois = 0;
-	char *pci_addr;
-	int i, rc;
-
-	ois = util_zalloc(sizeof(ois[0]) * zdev->num_netdevs);
-	for (i = 0; i < zdev->num_netdevs; i++) {
-		rc = ethtool_nl_get_optics(&ctx->ethtool_ctx, zdev->netdevs[i].name, &ois[i]);
-		if (rc)
-			goto free_ois;
-		num_ois++;
-	}
-	if (!ctx->opts.quiet) {
-		util_fmt_obj_start(FMT_DEFAULT, "adapter");
-		util_fmt_pair(FMT_QUOTE, "pft", zpci_pft_str(zdev));
-		util_fmt_obj_start(FMT_DEFAULT, "ids");
-		util_fmt_pair(FMT_QUOTE, "fid", "0x%0x", zdev->fid);
-		if (zdev->uid_is_unique)
-			util_fmt_pair(FMT_QUOTE, "uid", "0x%0x", zdev->uid);
-		pci_addr = zpci_pci_addr(zdev);
-		util_fmt_pair(FMT_QUOTE, "pci_address", pci_addr);
-		free(pci_addr);
-		util_fmt_obj_end();
-		util_fmt_obj_start(FMT_LIST, "netdevs");
-		for (i = 0; i < zdev->num_netdevs; i++)
-			optics_json_print(ctx, &zdev->netdevs[i], ois[i]);
-		util_fmt_obj_end(); /* netdevs list */
-		util_fmt_obj_end(); /* adapter */
-		fflush(stdout);
-	}
-	if (ctx->opts.report) {
-		for (i = 0; i < zdev->num_netdevs; i++) {
-			rc = sclp_issue_optics_report(zdev, ois[i]);
-			if (rc == -ENOTSUP) {
-				fprintf(stderr, "Skipping %s which does not support reporting\n",
-					zdev->netdevs[i].name);
-			} else if (rc < 0) {
-				fprintf(stderr, "Error issuing SCLP for optics data failed: %s\n",
-					strerror(-rc));
-			}
-		}
-	}
-free_ois:
-	for (i = 0; i < num_ois; i++)
-		optics_free(ois[i]);
-	free(ois);
-	return rc;
-}
-
-static void zpci_list_reload(struct util_list **zpci_list)
-{
-	if (*zpci_list)
-		zpci_free_dev_list(*zpci_list);
-	*zpci_list = zpci_dev_list();
-}
-
-static void dump_all_adapter_data(struct opticsmon_ctx *ctx)
-{
-	struct zpci_dev *zdev;
-
-	zpci_list_reload(&ctx->zpci_list);
-	util_list_iterate(ctx->zpci_list, zdev) {
-		/* Filter non-NIC devices and VFs */
-		if (zpci_is_vf(zdev) || !zdev->num_netdevs)
-			continue;
-		dump_adapter_data(ctx, zdev);
-	}
-}
-
-static int oneshot_mode(struct opticsmon_ctx *ctx)
-{
-	util_fmt_init(stdout, FMT_JSON, FMT_DEFAULT, API_LEVEL);
-	if (!ctx->opts.quiet)
-		util_fmt_obj_start(FMT_LIST, "adapters");
-	dump_all_adapter_data(ctx);
-	if (!ctx->opts.quiet)
-		util_fmt_obj_end();
-	util_fmt_exit();
-
-	return EXIT_SUCCESS;
-}
-
-void on_link_change(struct zpci_netdev *netdev, void *arg)
-{
-	struct opticsmon_ctx *ctx = arg;
-	struct zpci_netdev *found_netdev;
-	struct zpci_dev *zdev = NULL;
-	int reloads = 1;
-
-	do {
-		if (ctx->zpci_list) {
-			zdev = zpci_find_by_netdev(ctx->zpci_list, netdev->name, &found_netdev);
-			if (zdev) {
-				/* Skip data collection if operational state is
-				 * unchanged
-				 */
-				if (found_netdev->operstate == netdev->operstate)
-					return;
-				/* Update operation state for VFs even though
-				 * they are skipped just for a consistent view
-				 */
-				found_netdev->operstate = netdev->operstate;
-				/* Only collect optics data for PFs */
-				if (!zpci_is_vf(zdev))
-					dump_adapter_data(ctx, zdev);
-				return;
-			}
-		}
-		/* Could be uninitalized list or a new device, retry after reload  */
-		zpci_list_reload(&ctx->zpci_list);
-		reloads--;
-	} while (reloads > 0);
-}
-
-#define MAX_EVENTS 8
-
-static int monitor_wait_loop(struct opticsmon_ctx *ctx, int sigfd, int timerfd)
-{
-	struct epoll_event events[MAX_EVENTS];
-	struct signalfd_siginfo fdsi;
-	int i, nlfd, epfd, nfds;
-	struct epoll_event ev;
-	uint64_t expirations;
-	ssize_t sread;
-
-	epfd = epoll_create1(EPOLL_CLOEXEC);
-
-	ev.events = EPOLLIN;
-	ev.data.fd = sigfd;
-	if (epoll_ctl(epfd, EPOLL_CTL_ADD, sigfd, &ev) == -1)
-		return -EIO;
-
-	ev.events = EPOLLIN;
-	ev.data.fd = timerfd;
-	if (epoll_ctl(epfd, EPOLL_CTL_ADD, timerfd, &ev) == -1)
-		return -EIO;
-
-	nlfd = link_mon_nl_waitfd_getfd(&ctx->lctx);
-	ev.events = EPOLLIN;
-	ev.data.fd = nlfd;
-	if (epoll_ctl(epfd, EPOLL_CTL_ADD, nlfd, &ev) == -1)
-		return -EIO;
-
-	while (1) {
-		nfds = epoll_wait(epfd, events, MAX_EVENTS, -1);
-		if (nfds < 0)
-			return nfds;
-		for (i = 0; i < nfds; i++) {
-			/* signal fd */
-			if (events[i].data.fd == sigfd) {
-				sread = read(sigfd, &fdsi, sizeof(fdsi));
-				if (sread != sizeof(fdsi))
-					return -EIO;
-				switch (fdsi.ssi_signo) {
-				case SIGINT:
-				case SIGTERM:
-				case SIGQUIT:
-					return 0;
-				/* Unexpected signal */
-				default:
-					return -EIO;
-				}
-				/* timer fd */
-			} else if (events[i].data.fd == timerfd) {
-				sread = read(timerfd, &expirations, sizeof(uint64_t));
-				if (sread != sizeof(uint64_t))
-					return -EIO;
-				if (!expirations)
-					continue;
-				dump_all_adapter_data(ctx);
-				/* netlink fd */
-			} else if (events[i].data.fd == nlfd) {
-				link_mon_nl_waitfd_read(&ctx->lctx);
-			}
-		}
-	}
-	return 0;
-}
-
-static int monitor_mode(struct opticsmon_ctx *ctx)
-{
-	struct itimerspec timerspec;
-	int sigfd, timerfd, ret;
-	sigset_t mask;
-
-	sigemptyset(&mask);
-	sigaddset(&mask, SIGINT);
-	sigaddset(&mask, SIGQUIT);
-	sigaddset(&mask, SIGTERM);
-
-	if (sigprocmask(SIG_BLOCK, &mask, NULL) == -1)
-		return -EIO;
-
-	sigfd = signalfd(-1, &mask, 0);
-	if (sigfd == -1) {
-		fprintf(stderr, "Failed to create signalfd\n");
-		return -EIO;
-	}
-
-	timerfd = timerfd_create(CLOCK_MONOTONIC, 0);
-	if (timerfd == -1) {
-		fprintf(stderr, "Failed to create timerfd\n");
-		ret = -EIO;
-		goto close_signalfd;
-	}
-
-	/* Set initial expiration to 1 ns so we gather optics data at startup */
-	timerspec.it_value.tv_sec = 0;
-	timerspec.it_value.tv_nsec = 1;
-	timerspec.it_interval.tv_sec = ctx->opts.interval_seconds;
-	timerspec.it_interval.tv_nsec = 0;
-	ret = timerfd_settime(timerfd, 0, &timerspec, NULL);
-	if (ret == -1) {
-		fprintf(stderr, "Failed to arm timer\n");
-		goto close_timerfd;
-	}
-
-	util_fmt_init(stdout, FMT_JSONSEQ, FMT_DEFAULT, API_LEVEL);
-	ret = link_mon_nl_waitfd_create(&ctx->lctx, on_link_change, ctx);
-	if (ret) {
-		fprintf(stderr, "Failed to create link monitoring socket\n");
-		goto close_timerfd;
-	}
-
-	monitor_wait_loop(ctx, sigfd, timerfd);
-
-	link_mon_nl_waitfd_destroy(&ctx->lctx);
-	util_fmt_exit();
-close_signalfd:
-	close(sigfd);
-close_timerfd:
-	close(timerfd);
-	return ret;
-}
-
-int main(int argc, char **argv)
-{
-	struct opticsmon_ctx ctx = { .opts = { .interval_seconds = 86400 } };
-	int ret;
-
-	parse_cmdline(argc, argv, &ctx.opts);
-	ethtool_nl_connect(&ctx.ethtool_ctx);
-	if (ctx.opts.monitor)
-		ret = monitor_mode(&ctx);
-	else
-		ret = oneshot_mode(&ctx);
-	ethtool_nl_close(&ctx.ethtool_ctx);
-
-	if (ctx.zpci_list)
-		zpci_free_dev_list(ctx.zpci_list);
-
-	return ret;
-}

rust/Cargo.lock

@@ -1222,9 +1222,21 @@ dependencies = [
  "clap",
  "libc",
  "log",
+ "openssl",
  "s390_pv",
  "serde",
  "serde_json",
+ "utils_macros",
+]
+
+[[package]]
+name = "utils_macros"
+version = "0.12.0"
+dependencies = [
+ "clap",
+ "proc-macro2",
+ "quote",
+ "syn",
 ]
 
 [[package]]

rust/Cargo.toml

@@ -11,6 +11,7 @@ members = [
 	"pvsecret",
 	"pvverify",
 	"utils",
+	"utils_macros",
 ]
 resolver = "2"
 

rust/pv/src/brcb.rs

@@ -17,6 +17,8 @@ use crate::{assert_size, request::MagicValue, static_assert, Error, Result, PAGE
 pub enum SeHdrVersion {
     /// Secure Execution header v1
     One = 0x100,
+    /// Secure Execution header v2
+    Two = 0x200,
 }
 
 /// Struct containing all SE-header tags.
@@ -241,6 +243,7 @@ impl BootHdrTags {
         // Some sanity checks
         let hdr_version = match hdr_head.version.get() {
             0x100 => SeHdrVersion::One,
+            0x200 => SeHdrVersion::Two,
             _ => {
                 debug!("Unsupported hdr-version: {:0>4x}", hdr_head.version.get());
                 return Err(Error::InvBootHdr);

rust/pv/src/crypto.rs

@@ -7,12 +7,14 @@ use std::fmt::Display;
 use std::ops::Range;
 
 use enum_dispatch::enum_dispatch;
+use openssl::bn::BigNumContext;
 use openssl::derive::Deriver;
-use openssl::ec::{EcGroup, EcKey};
+use openssl::ec::{EcGroup, EcKey, EcPoint};
+use openssl::error::ErrorStack;
 use openssl::hash::{DigestBytes, MessageDigest};
 use openssl::md::MdRef;
 use openssl::nid::Nid;
-use openssl::pkey::{HasPublic, Id, PKey, PKeyRef, Private, Public};
+use openssl::pkey::{HasPublic, Id, KeyType, PKey, PKeyRef, Private, Public};
 use openssl::pkey_ctx::{HkdfMode, PkeyCtx};
 use openssl::rand::rand_bytes;
 use openssl::rsa::Padding;
@@ -23,8 +25,51 @@ use openssl::symm::{
 use pv_core::request::Confidential;
 
 use crate::error::Result;
+use crate::openssl_extensions::PkeyEncapsulateContext;
+use crate::req::get_pub_ecdh_points;
+use crate::request::EcPubKeyCoord;
 use crate::Error;
 
+/// Compute ECDH shared secret from public and private keys
+///
+/// It is expected that the public and private key are with respect to EC-P521.
+///
+/// Note that the output is the concatenation of the 80-bytes-left-padded x and
+/// 80-bytes-left-padded y coordinate.
+fn ecdh_shared_secret(
+    pub_key: &PKeyRef<Public>,
+    priv_key: &PKeyRef<Private>,
+) -> Result<[u8; 160], ErrorStack> {
+    let pub_key = pub_key.ec_key()?;
+    let priv_key = priv_key.ec_key()?;
+
+    // Verify both keys use the EC-P521 curve (SECP521R1)
+    assert_eq!(
+        pub_key.group().curve_name(),
+        Some(Nid::SECP521R1),
+        "Public key must use EC-P521 curve"
+    );
+    assert_eq!(
+        priv_key.group().curve_name(),
+        Some(Nid::SECP521R1),
+        "Private key must use EC-P521 curve"
+    );
+
+    pub_key.check_key()?;
+    priv_key.check_key()?;
+    let group = pub_key.group();
+    let mut bn_ctx = BigNumContext::new()?;
+    let mut point = EcPoint::new(group)?;
+    point.mul2(
+        group,
+        pub_key.public_key(),
+        priv_key.private_key(),
+        &mut bn_ctx,
+    )?;
+    let coord = get_pub_ecdh_points(&point, group)?;
+    Ok(coord)
+}
+
 /// An AES256-GCM key that will purge itself out of the memory when going out of scope
 pub type Aes256GcmKey = Confidential<[u8; SymKeyType::AES_256_GCM_KEY_LEN]>;
 /// An AES256-XTS key that will purge itself out of the memory when going out of scope
@@ -74,6 +119,7 @@ impl SymKeyType {
     }
 
     /// Returns true if the [`SymKeyType`] is an AEAD key
+    #[must_use]
     pub const fn is_aead(&self) -> bool {
         self.tag_len().is_some()
     }
@@ -214,6 +260,220 @@ pub fn derive_aes256_gcm_key(k1: &PKeyRef<Private>, k2: &PKeyRef<Public>) -> Res
     ))
 }
 
+/// Determines the KeyType of a given PKey by testing against all known key types.
+///
+/// This function iterates through all known OpenSSL key types and uses the `is_a()`
+/// method to identify which type the provided key matches. This is more reliable than
+/// using `Id` to `KeyType` conversion, especially for newer key types like ML-KEM
+/// that may not have a direct `Id` mapping.
+///
+/// # Parameters
+///
+/// * `key` - A reference to the PKey to identify
+///
+/// # Returns
+///
+/// * `Some(KeyType)` - If the key matches one of the known key types
+/// * `None` - If the key type is not recognized or doesn't match any known types
+fn pkey_to_keytype<T>(key: &PKeyRef<T>) -> Option<KeyType> {
+    const KNOWN_KEY_TYPES: &[KeyType] = &[
+        KeyType::RSA,
+        KeyType::RSA_PSS,
+        KeyType::DSA,
+        KeyType::DH,
+        KeyType::EC,
+        KeyType::HMAC,
+        KeyType::CMAC,
+        KeyType::X25519,
+        KeyType::ED25519,
+        KeyType::X448,
+        KeyType::ED448,
+        KeyType::ML_KEM_512,
+        KeyType::ML_KEM_768,
+        KeyType::ML_KEM_1024,
+    ];
+
+    KNOWN_KEY_TYPES
+        .iter()
+        .find(|&&key_type| key.is_a(key_type))
+        .copied()
+}
+
+fn key_type_str(t: KeyType) -> &'static str {
+    if t == KeyType::RSA {
+        "RSA"
+    } else if t == KeyType::RSA_PSS {
+        "RSA-PSS"
+    } else if t == KeyType::DSA {
+        "DSA"
+    } else if t == KeyType::DH {
+        "DH"
+    } else if t == KeyType::EC {
+        "EC"
+    } else if t == KeyType::HMAC {
+        "HMAC"
+    } else if t == KeyType::CMAC {
+        "CMAC"
+    } else if t == KeyType::X25519 {
+        "X25519"
+    } else if t == KeyType::ED25519 {
+        "ED25519"
+    } else if t == KeyType::X448 {
+        "X448"
+    } else if t == KeyType::ED448 {
+        "ED448"
+    } else if t == KeyType::ML_KEM_512 {
+        "ML-KEM-512"
+    } else if t == KeyType::ML_KEM_768 {
+        "ML-KEM-768"
+    } else if t == KeyType::ML_KEM_1024 {
+        "ML-KEM-1024"
+    } else {
+        "unknown"
+    }
+}
+
+/// Validates that a key matches the expected key type.
+///
+/// # Errors
+///
+/// Returns an error if the key doesn't match the expected type.
+pub(crate) fn validate_key_type<T: HasPublic>(
+    key: &PKeyRef<T>,
+    key_name: &str,
+    expected_type: KeyType,
+) -> Result<()> {
+    if !key.is_a(expected_type) {
+        return Err(Error::RetrInvKey {
+            what: "key type",
+            kind: key_name.to_string(),
+            value: pkey_to_keytype(key)
+                .map(key_type_str)
+                .unwrap_or("unknown")
+                .to_string(),
+            exp: key_type_str(expected_type).to_string(),
+        });
+    }
+    Ok(())
+}
+
+/// Validates that a key is an EC key with the specified curve.
+///
+/// # Errors
+///
+/// Returns an error if the key is not an EC key or doesn't use the expected curve.
+pub(crate) fn validate_ec_key<T: HasPublic>(
+    key: &PKeyRef<T>,
+    key_name: &str,
+    expected_curve: Nid,
+) -> Result<()> {
+    if key.id() != Id::EC {
+        return Err(Error::RetrInvKey {
+            what: "key type",
+            kind: key_name.to_string(),
+            value: pkey_to_keytype(key)
+                .map(key_type_str)
+                .unwrap_or("unknown")
+                .to_string(),
+            exp: format!("EC ({})", expected_curve.long_name().unwrap_or("unknown")),
+        });
+    }
+    let ec_key = key.ec_key()?;
+    if ec_key.group().curve_name() != Some(expected_curve) {
+        return Err(Error::RetrInvKey {
+            what: "curve",
+            kind: key_name.to_string(),
+            value: ec_key
+                .group()
+                .curve_name()
+                .and_then(|nid| nid.long_name().ok())
+                .unwrap_or("unknown")
+                .to_string(),
+            exp: expected_curve.long_name().unwrap_or("unknown").to_string(),
+        });
+    }
+    Ok(())
+}
+
+/// Derive a symmetric AES 256 GCM key from a private target key, a public
+/// customer key, and a public ML-KEM target key.
+///
+/// # Returns
+///
+/// The derived key and the ML-KEM ciphertext (KC).
+///
+/// # Errors
+///
+/// This function will return an error if something went bad in OpenSSL or the
+/// wrong key types were used.
+pub fn derive_aes256_gcm_key_hybrid(
+    priv_ecdh_cust_key: &PKeyRef<Private>,
+    pub_ecdh_target_key: &PKeyRef<Public>,
+    pub_mlkem_target_key: &PKeyRef<Public>,
+) -> Result<(Aes256GcmKey, Vec<u8>)> {
+    let mut buffer: Vec<u8> = vec![0, 0, 0, 1];
+
+    validate_ec_key(priv_ecdh_cust_key, "ECDH customer key", Nid::SECP521R1)?;
+    validate_ec_key(pub_ecdh_target_key, "ECDH target key", Nid::SECP521R1)?;
+    validate_key_type(
+        pub_mlkem_target_key,
+        "ML-KEM target key",
+        KeyType::ML_KEM_1024,
+    )?;
+
+    // Derive the ECDH shared secret
+    let ecdh_derived_secret = ecdh_shared_secret(pub_ecdh_target_key, priv_ecdh_cust_key)?;
+    assert_eq!(ecdh_derived_secret.as_ref().len(), 160);
+    buffer.extend_from_slice(ecdh_derived_secret.as_ref());
+
+    // Derive the ML-KEM shared secret
+    let mut ctx = PkeyCtx::new(pub_mlkem_target_key)?;
+    ctx.encapsulate_init()?;
+    let (mut ciphertext, mut shared_secret) = (vec![], vec![]);
+    ctx.encapsulate_to_vec(&mut ciphertext, &mut shared_secret)?;
+    assert_eq!(ciphertext.len(), 1568);
+    assert_eq!(shared_secret.len(), 32);
+    buffer.extend_from_slice(&shared_secret);
+
+    // Append the private ECDH customer key
+    let pub_ecdh_cust_key = EcPubKeyCoord::try_from(priv_ecdh_cust_key)?;
+    assert_eq!(pub_ecdh_cust_key.as_ref().len(), 160);
+    buffer.extend_from_slice(pub_ecdh_cust_key.as_ref());
+
+    // Append the ciphertext
+    buffer.extend_from_slice(&ciphertext);
+
+    // Append the public ECDH target key
+    let pub_ecdh_target_key: EcPubKeyCoord = pub_ecdh_target_key.try_into()?;
+    assert_eq!(pub_ecdh_target_key.as_ref().len(), 160);
+    buffer.extend_from_slice(pub_ecdh_target_key.as_ref());
+
+    // Append the public ML-KEM target key
+    assert_eq!(pub_mlkem_target_key.raw_public_key()?.len(), 1568);
+    buffer.extend_from_slice(&pub_mlkem_target_key.raw_public_key()?);
+
+    // Append the magic string
+    const STRING: &str = "PQC Secure Execution with Format-2 Key Slots KS2";
+    assert_eq!(STRING.len(), 48);
+    buffer.extend_from_slice(STRING.as_bytes());
+
+    // Sanity check
+    assert_eq!(buffer.len(), 4 + 160 + 32 + 160 + 1568 + 160 + 1568 + 48);
+
+    let secr = Confidential::new(buffer);
+
+    // Panic: does not panic as SHA256 digest is 32 bytes long
+    Ok((
+        Aes256GcmKey::new(
+            hash(MessageDigest::sha256(), secr.value())?
+                .as_ref()
+                .try_into()
+                .unwrap(),
+        ),
+        ciphertext,
+    ))
+}
+
 /// Generate a random array.
 ///
 /// # Errors
@@ -760,6 +1020,112 @@ mod tests {
         assert_eq!(&calc_key, &exp_key);
     }
 
+    #[test]
+    fn derive_aes256_gcm_key_hybrid() {
+        let (cust_key, host_key_1, host_key_2) = get_test_keys_hybrid();
+        let entropy = [0x5au8; 4096];
+        let nonce = [0xa5u8; 48];
+
+        let _rng = DeterministicTestRandGuard::install(&entropy, &nonce).unwrap();
+
+        let exp_key: Aes256GcmKey = [
+            197, 167, 157, 112, 186, 112, 72, 125, 192, 219, 168, 132, 178, 167, 249, 123, 149, 3,
+            151, 166, 162, 66, 120, 39, 41, 230, 143, 54, 172, 10, 200, 143,
+        ]
+        .into();
+        let exp_kc = [
+            54, 117, 96, 77, 148, 147, 170, 100, 34, 177, 95, 7, 35, 243, 145, 115, 7, 87, 178, 9,
+            169, 99, 193, 99, 244, 195, 23, 78, 11, 153, 221, 196, 5, 192, 253, 192, 86, 49, 194,
+            236, 43, 69, 183, 125, 166, 87, 158, 188, 13, 152, 19, 6, 253, 29, 194, 0, 101, 236,
+            28, 171, 3, 236, 53, 186, 191, 109, 7, 83, 220, 93, 126, 29, 19, 203, 201, 39, 59, 7,
+            131, 51, 81, 73, 254, 69, 105, 185, 214, 179, 155, 194, 189, 122, 106, 130, 249, 48, 4,
+            33, 245, 170, 163, 4, 223, 208, 138, 224, 203, 119, 105, 59, 187, 153, 235, 90, 79,
+            127, 29, 136, 230, 142, 78, 83, 27, 131, 58, 126, 76, 53, 129, 20, 85, 108, 86, 64,
+            244, 90, 84, 177, 239, 105, 90, 41, 118, 189, 88, 174, 224, 216, 29, 10, 123, 81, 212,
+            203, 197, 120, 20, 190, 3, 45, 37, 194, 208, 249, 232, 221, 67, 10, 62, 121, 143, 169,
+            227, 165, 17, 30, 85, 223, 44, 141, 114, 142, 105, 119, 187, 41, 46, 8, 6, 17, 29, 165,
+            117, 254, 92, 174, 231, 25, 117, 69, 112, 216, 80, 73, 185, 54, 50, 119, 145, 220, 174,
+            26, 105, 81, 114, 210, 144, 148, 109, 218, 64, 78, 231, 196, 229, 88, 46, 128, 106,
+            125, 204, 58, 184, 127, 193, 207, 86, 163, 98, 164, 57, 242, 29, 59, 251, 227, 185, 60,
+            18, 68, 74, 47, 203, 61, 164, 78, 245, 100, 87, 148, 210, 97, 158, 252, 79, 78, 50,
+            143, 35, 231, 215, 211, 75, 133, 214, 227, 140, 27, 21, 46, 221, 84, 89, 165, 161, 227,
+            46, 117, 193, 254, 190, 237, 130, 28, 57, 52, 14, 235, 154, 115, 172, 185, 67, 116, 34,
+            242, 158, 209, 0, 126, 196, 93, 224, 29, 246, 145, 65, 73, 185, 196, 4, 107, 124, 241,
+            157, 230, 168, 244, 238, 84, 188, 173, 17, 238, 26, 161, 24, 176, 229, 226, 33, 244,
+            167, 41, 107, 156, 29, 226, 248, 64, 146, 191, 210, 234, 76, 144, 219, 92, 136, 173,
+            241, 98, 0, 71, 135, 214, 196, 116, 63, 243, 73, 71, 130, 171, 86, 204, 149, 69, 164,
+            20, 177, 122, 95, 226, 95, 126, 106, 160, 59, 97, 137, 8, 73, 113, 189, 172, 24, 114,
+            60, 62, 249, 193, 3, 99, 34, 153, 42, 238, 77, 181, 80, 185, 223, 39, 8, 44, 215, 119,
+            214, 30, 136, 19, 215, 35, 184, 69, 94, 10, 170, 179, 51, 183, 105, 237, 237, 48, 199,
+            122, 159, 87, 183, 71, 230, 87, 102, 77, 81, 116, 28, 126, 195, 72, 50, 157, 223, 243,
+            83, 36, 16, 168, 111, 209, 132, 12, 96, 56, 140, 57, 144, 75, 253, 119, 123, 168, 2,
+            79, 214, 121, 80, 154, 93, 235, 222, 130, 181, 166, 97, 51, 106, 21, 138, 224, 8, 144,
+            223, 162, 152, 183, 6, 80, 64, 144, 21, 155, 56, 255, 108, 248, 125, 196, 46, 99, 119,
+            94, 104, 63, 46, 15, 165, 30, 98, 75, 212, 193, 116, 151, 189, 65, 42, 83, 253, 183,
+            41, 195, 45, 206, 178, 66, 36, 215, 197, 105, 236, 79, 91, 135, 164, 71, 187, 199, 200,
+            150, 226, 182, 254, 6, 234, 109, 3, 17, 116, 249, 44, 211, 184, 61, 189, 44, 181, 249,
+            8, 58, 230, 236, 8, 188, 14, 178, 100, 120, 250, 29, 1, 204, 158, 46, 161, 39, 66, 76,
+            42, 114, 149, 160, 31, 87, 254, 181, 224, 17, 162, 163, 99, 11, 34, 149, 50, 203, 205,
+            224, 38, 18, 233, 161, 49, 7, 151, 63, 81, 68, 71, 174, 49, 22, 143, 93, 50, 0, 154,
+            152, 178, 134, 147, 152, 118, 196, 241, 233, 67, 102, 149, 179, 213, 176, 118, 64, 172,
+            143, 134, 196, 232, 154, 110, 129, 155, 159, 103, 117, 202, 11, 35, 75, 104, 5, 11,
+            160, 147, 174, 49, 248, 45, 247, 16, 7, 64, 209, 255, 170, 243, 242, 40, 158, 94, 239,
+            194, 225, 113, 24, 90, 243, 73, 137, 217, 175, 130, 50, 133, 139, 250, 145, 190, 76,
+            151, 183, 30, 86, 146, 59, 171, 214, 211, 135, 203, 192, 42, 189, 90, 47, 152, 132,
+            168, 252, 175, 71, 234, 118, 207, 161, 176, 254, 189, 54, 174, 160, 178, 158, 133, 122,
+            63, 75, 95, 201, 55, 139, 2, 208, 232, 110, 74, 201, 196, 135, 244, 156, 87, 208, 101,
+            203, 121, 187, 16, 106, 80, 120, 165, 44, 147, 182, 114, 173, 186, 185, 255, 99, 85,
+            88, 26, 27, 43, 203, 176, 207, 88, 20, 253, 169, 210, 168, 109, 75, 234, 239, 8, 243,
+            244, 65, 164, 193, 255, 240, 215, 54, 158, 188, 93, 93, 54, 46, 77, 152, 78, 174, 154,
+            67, 248, 24, 235, 172, 240, 83, 224, 17, 100, 217, 15, 172, 176, 46, 85, 107, 105, 127,
+            147, 158, 202, 255, 145, 237, 84, 223, 100, 214, 38, 133, 169, 112, 227, 138, 220, 125,
+            72, 197, 5, 227, 94, 245, 42, 70, 33, 209, 243, 70, 229, 37, 118, 214, 147, 43, 87, 39,
+            241, 107, 26, 169, 28, 72, 223, 133, 145, 44, 248, 213, 52, 127, 250, 99, 193, 115,
+            113, 147, 89, 112, 237, 199, 208, 36, 155, 106, 144, 73, 249, 8, 116, 198, 107, 120,
+            233, 145, 11, 155, 178, 7, 66, 157, 255, 206, 128, 155, 233, 111, 148, 194, 214, 238,
+            252, 230, 96, 119, 30, 37, 73, 133, 129, 87, 185, 149, 251, 156, 17, 8, 83, 106, 207,
+            98, 203, 100, 39, 199, 127, 253, 59, 37, 121, 161, 216, 146, 6, 178, 183, 243, 191, 91,
+            106, 243, 132, 111, 216, 163, 87, 210, 197, 173, 146, 65, 131, 194, 96, 70, 6, 7, 192,
+            45, 173, 71, 44, 134, 122, 60, 173, 208, 238, 22, 187, 208, 212, 51, 191, 185, 174, 3,
+            125, 28, 134, 216, 209, 4, 224, 199, 16, 15, 56, 70, 188, 216, 92, 24, 96, 57, 125,
+            138, 151, 73, 254, 245, 106, 53, 4, 150, 74, 43, 42, 4, 157, 238, 125, 168, 41, 224,
+            22, 249, 45, 117, 32, 180, 161, 41, 39, 180, 96, 24, 2, 102, 57, 116, 34, 75, 90, 72,
+            134, 176, 2, 196, 59, 143, 182, 201, 117, 178, 153, 81, 108, 167, 122, 139, 71, 197,
+            55, 114, 60, 161, 130, 14, 29, 79, 152, 55, 136, 62, 190, 228, 202, 53, 126, 4, 173,
+            99, 28, 190, 224, 255, 134, 123, 166, 162, 244, 55, 26, 81, 120, 207, 193, 10, 103,
+            153, 215, 220, 12, 71, 67, 217, 154, 212, 44, 200, 232, 0, 178, 39, 44, 22, 7, 14, 215,
+            183, 192, 104, 51, 46, 93, 102, 195, 65, 9, 191, 241, 237, 151, 5, 64, 103, 228, 162,
+            41, 123, 29, 5, 80, 203, 198, 234, 230, 107, 53, 60, 58, 253, 47, 152, 22, 77, 81, 86,
+            215, 132, 152, 135, 6, 218, 46, 92, 192, 218, 198, 234, 76, 178, 25, 203, 48, 61, 76,
+            215, 96, 6, 49, 195, 37, 225, 10, 175, 222, 186, 133, 63, 50, 236, 215, 247, 17, 199,
+            8, 134, 64, 246, 194, 167, 105, 15, 57, 62, 50, 51, 243, 192, 242, 122, 11, 46, 202,
+            47, 10, 71, 153, 212, 226, 38, 12, 90, 150, 154, 152, 233, 7, 172, 111, 185, 160, 246,
+            0, 166, 113, 90, 37, 203, 166, 43, 53, 255, 211, 127, 139, 73, 7, 10, 164, 1, 168, 223,
+            87, 127, 43, 47, 87, 68, 84, 247, 223, 108, 108, 113, 36, 17, 50, 98, 236, 48, 10, 219,
+            182, 107, 240, 198, 207, 20, 178, 9, 142, 14, 93, 163, 166, 147, 38, 176, 172, 156, 73,
+            174, 238, 175, 231, 130, 159, 51, 128, 76, 34, 37, 138, 19, 3, 59, 71, 78, 144, 238,
+            226, 214, 188, 27, 42, 142, 245, 238, 131, 190, 211, 240, 41, 122, 69, 124, 171, 75,
+            115, 45, 144, 133, 176, 19, 81, 125, 230, 149, 235, 159, 6, 155, 195, 119, 62, 140, 50,
+            52, 209, 124, 3, 93, 232, 20, 130, 138, 110, 60, 183, 177, 161, 52, 114, 91, 19, 211,
+            156, 185, 202, 200, 36, 103, 253, 113, 45, 245, 177, 238, 43, 144, 38, 221, 0, 102, 50,
+            255, 20, 154, 56, 156, 155, 92, 157, 57, 209, 77, 84, 88, 24, 116, 116, 54, 213, 222,
+            76, 212, 193, 168, 216, 247, 125, 135, 114, 226, 128, 140, 250, 103, 82, 215, 238, 32,
+            74, 252, 45, 224, 23, 95, 126, 124, 135, 124, 128, 53, 203, 40, 65, 222, 8, 83, 178,
+            211, 64, 141, 64, 98, 188, 134, 100, 65, 166, 52, 249, 1, 206, 58, 55, 195, 23, 218,
+            239, 41, 73, 88, 113, 148, 132, 209, 93, 37, 205, 58, 92, 14, 1, 133, 168, 162, 192,
+            147, 70, 167, 101, 170, 152, 159, 0, 212, 26, 97, 49, 43, 217, 173, 38, 215, 136, 26,
+            208, 244, 19, 83, 207, 38, 224, 254, 92, 169, 219, 236, 172, 49, 55, 98, 55, 15, 187,
+            173, 114, 99, 130, 211, 78, 168, 221, 209, 250, 88, 189, 17, 186, 172, 129, 56, 90,
+            238, 120, 23, 176, 87, 133, 81, 244, 29, 2, 215, 34, 88, 247, 231, 167, 56,
+        ];
+
+        let (exc_key, kc) =
+            super::derive_aes256_gcm_key_hybrid(&cust_key, &host_key_1, &host_key_2).unwrap();
+
+        assert_eq!(exc_key, exp_key);
+        assert_eq!(kc, exp_kc);
+    }
+
     #[test]
     fn hkdf_rfc_5869() {
         use openssl::md::Md;
@@ -933,4 +1299,94 @@ mod tests {
             }))
         ));
     }
+
+    #[test]
+    fn validate_ec_key_valid() {
+        let (cust_key, host_key) = get_test_keys();
+
+        // Both test keys are SECP521R1 EC keys
+        assert!(validate_ec_key(&cust_key, "customer key", Nid::SECP521R1).is_ok());
+        assert!(validate_ec_key(&host_key, "host key", Nid::SECP521R1).is_ok());
+    }
+
+    #[test]
+    fn validate_ec_key_wrong_curve() {
+        let (cust_key, _) = get_test_keys();
+
+        // Test key is SECP521R1, but we expect SECP384R1
+        let result = validate_ec_key(&cust_key, "customer key", Nid::SECP384R1);
+        assert!(result.is_err());
+
+        if let Err(Error::RetrInvKey {
+            what,
+            kind,
+            value,
+            exp,
+        }) = result
+        {
+            assert_eq!(what, "curve");
+            assert_eq!(kind, "customer key");
+            assert_eq!(value, "secp521r1");
+            assert_eq!(exp, "secp384r1");
+        } else {
+            panic!("Expected RetrInvKey error");
+        }
+    }
+
+    #[test]
+    fn validate_ec_key_not_ec() {
+        let keypair = crate::get_test_asset!("keys/rsa2048key.pem");
+        let keypair = PKey::private_key_from_pem(keypair).unwrap();
+
+        // RSA key is not an EC key
+        let result = validate_ec_key(&keypair, "EC key", Nid::SECP521R1);
+        assert!(result.is_err());
+
+        if let Err(Error::RetrInvKey {
+            what,
+            kind,
+            value,
+            exp,
+        }) = result
+        {
+            assert_eq!(what, "key type");
+            assert_eq!(kind, "EC key");
+            assert_eq!(value, "RSA");
+            assert_eq!(exp, "EC (secp521r1)");
+        } else {
+            panic!("Expected RetrInvKey error");
+        }
+    }
+
+    #[test]
+    fn validate_mlkem_key_valid() {
+        let (_, _, mlkem_key) = get_test_keys_hybrid();
+
+        // The third key from get_test_keys_hybrid is ML-KEM-1024
+        assert!(validate_key_type(&mlkem_key, "ML-KEM key", KeyType::ML_KEM_1024).is_ok());
+    }
+
+    #[test]
+    fn validate_mlkem_key_wrong_type() {
+        let (ec_key, _) = get_test_keys();
+
+        // EC key is not ML-KEM
+        let result = validate_key_type(&ec_key, "EC key", KeyType::ML_KEM_1024);
+        assert!(result.is_err());
+
+        if let Err(Error::RetrInvKey {
+            what,
+            kind,
+            value,
+            exp,
+        }) = result
+        {
+            assert_eq!(what, "key type");
+            assert_eq!(kind, "EC key");
+            assert_eq!(value, "EC");
+            assert_eq!(exp, "ML-KEM-1024");
+        } else {
+            panic!("Expected RetrInvKey error");
+        }
+    }
 }

rust/pv/src/error.rs

@@ -64,8 +64,11 @@ pub enum Error {
     #[error("No user-key for verification provided and user-data is signed")]
     BinAsrcbNoUserDataSgnKey,
 
-    #[error("Input does not contain an add-secret request version 1")]
-    BinAsrcbInvVersion,
+    #[error("Input contains an unknown add-secret request version {0}")]
+    BinAsrcbInvVersion(u32),
+
+    #[error("Unsupported add-secret request version: {0}")]
+    UnsupportedAddSecretVersion(u32),
 
     #[error("Provided user-data key type ({key}) does not match with the user-data ({kind})")]
     AsrcbUserDataKeyMismatch { key: String, kind: UserDataType },
@@ -84,6 +87,9 @@ pub enum Error {
     #[error("The provided host key document in {0} contains no certificate!")]
     NoHkdInFile(String),
 
+    #[error("The provided host key document in {0} contains the wrong number of keys!")]
+    WrongNumberOfKeys(String),
+
     #[error("Invalid input size ({0}) for boot hdr")]
     InvBootHdrSize(usize),
 
@@ -135,6 +141,12 @@ pub enum Error {
 
     #[error("Unsupported cipher: {:?}", .0.as_raw())]
     UnsupportedCipher(Nid),
+
+    #[error("{}", .0)]
+    InvalidHkd(String),
+
+    #[error("All host keys must use the same version (all hybrid or all non-hybrid)")]
+    MixedHostkeyVersions,
 }
 
 // used in macros

rust/pv/src/lib.rs

@@ -89,13 +89,16 @@ pub use crate::error::HkdVerifyErrorType;
 
 /// Functionalities to build UV requests
 pub mod request {
-    pub use crate::brcb::{seek_se_hdr_start, BootHdrTags, SeImgMetaData};
+    pub use crate::brcb::{seek_se_hdr_start, BootHdrTags, SeHdrVersion, SeImgMetaData};
     pub use crate::crypto::{
         decrypt_aead, derive_aes256_gcm_key, encrypt_aead, gen_ec_key, random_array,
         AeadDecryptionResult, AeadEncryptionResult, Aes256GcmKey, Aes256XtsKey, SymKey, SymKeyType,
         SHA_512_HASH_LEN,
     };
-    pub use crate::req::{EcPubKeyCoord, Encrypt, HostKey, Keyslot, ReqEncrCtx, Request};
+    pub use crate::req::{
+        EcPubKeyCoord, Encrypt, HostKey, HybridPKey, Keyslot, KeyslotV1, KeyslotV2, ReqEncrCtx,
+        Request,
+    };
     pub use crate::verify::{CertVerifier, HkdVerifier, NoVerifyHkd};
 
     /// Reexports some useful OpenSSL symbols

rust/pv/src/openssl_extensions/mod.rs

@@ -14,5 +14,4 @@ mod stackable_crl;
 pub use akid::*;
 pub use bio::*;
 pub use crl::*;
-#[expect(unused_imports)]
 pub use ml_kem::*;

rust/pv/src/req/ec_coord.rs

@@ -47,7 +47,10 @@ impl EcPubKeyCoord {
 
 /// Get the pub ECDH coordinates in the format the Ultravisor expects it:
 /// The two coordinates are padded to 80 bytes each.
-fn get_pub_ecdh_points(pkey: &EcPointRef, grp: &EcGroupRef) -> Result<[u8; 160], ErrorStack> {
+pub(crate) fn get_pub_ecdh_points(
+    pkey: &EcPointRef,
+    grp: &EcGroupRef,
+) -> Result<[u8; 160], ErrorStack> {
     let mut x = BigNum::new()?;
     let mut y = BigNum::new()?;
     let mut bn_ctx = BigNumContext::new()?;

rust/pv/src/req/header.rs

@@ -3,6 +3,8 @@
 // Copyright IBM Corp.
 
 //! Request header structure for UV requests.
+
+use pv_core::request::{RequestMagic, RequestVersion};
 use zerocopy::{BigEndian, FromBytes, Immutable, IntoBytes, U32};
 
 use crate::assert_size;
@@ -25,13 +27,13 @@ pub struct RequestHdr {
 assert_size!(RequestHdr, 48);
 
 impl RequestHdr {
-    pub(crate) fn new(
-        rqvn: u32,
+    pub(super) fn new(
+        rqvn: RequestVersion,
         rql: u32,
         iv: [u8; 12],
         nks: u8,
         sea: u32,
-        magic: Option<[u8; 8]>,
+        magic: Option<RequestMagic>,
     ) -> Self {
         Self {
             magic: magic.unwrap_or_default(),

rust/pv/src/req/hostkey.rs

@@ -4,7 +4,56 @@
 
 //! Host key types for UV requests
 
-use openssl::pkey::{PKey, Public};
+use openssl::nid::Nid;
+use openssl::pkey::{KeyType, PKey, PKeyRef, Public};
+
+use crate::crypto::{validate_ec_key, validate_key_type};
+pub use crate::error::Result;
+
+/// Hybrid public key (ECDH and ML-KEM)
+#[derive(Clone, Debug)]
+pub struct HybridPKey {
+    /// ECDH public key
+    pub(super) ec_key: PKey<Public>,
+
+    /// ML-KEM public key
+    pub(super) mlkem_key: PKey<Public>,
+}
+
+impl HybridPKey {
+    /// Creates a new hybrid public key with validation.
+    ///
+    /// # Parameters
+    /// - `ec_key`: ECDH public key (must be SECP521R1)
+    /// - `mlkem_key`: ML-KEM public key (must be ML-KEM-1024)
+    ///
+    /// # Errors
+    /// Returns an error if:
+    /// - EC key is not SECP521R1 curve
+    /// - ML-KEM key is not ML-KEM-1024
+    pub fn new(ec_key: PKey<Public>, mlkem_key: PKey<Public>) -> Result<Self> {
+        validate_ec_key(&ec_key, "ECDH key", Nid::SECP521R1)?;
+        validate_key_type(&mlkem_key, "ML-KEM key", KeyType::ML_KEM_1024)?;
+
+        Ok(Self { ec_key, mlkem_key })
+    }
+
+    /// Returns a reference to the EC key
+    pub fn ec_key(&self) -> &PKeyRef<Public> {
+        &self.ec_key
+    }
+
+    /// Returns a reference to the ML-KEM key
+    pub fn mlkem_key(&self) -> &PKeyRef<Public> {
+        &self.mlkem_key
+    }
+}
+
+impl AsRef<HybridPKey> for HybridPKey {
+    fn as_ref(&self) -> &HybridPKey {
+        self
+    }
+}
 
 /// Versioned host keys container
 #[non_exhaustive]
@@ -12,15 +61,33 @@ use openssl::pkey::{PKey, Public};
 pub enum HostKey {
     /// ECDH public key
     V1(PKey<Public>),
+
+    /// Hybrid public key (ECDH and ML-KEM)
+    V2(HybridPKey),
 }
 
 impl HostKey {
     /// Return the ECDH public key
-    pub fn ec_key(&self) -> &PKey<Public> {
-        match self {
+    pub fn ec_key(&self) -> Option<&PKeyRef<Public>> {
+        Some(match self {
             HostKey::V1(ec_key) => ec_key,
+            HostKey::V2(hybrid) => hybrid.ec_key(),
+        })
+    }
+
+    /// Return the ML-KEM public key
+    pub fn mlkem_key(&self) -> Option<&PKeyRef<Public>> {
+        match self {
+            HostKey::V1(_) => None,
+            HostKey::V2(hybrid) => Some(hybrid.mlkem_key()),
         }
     }
+
+    /// Test if the hostkey is hybrid
+    #[must_use]
+    pub fn is_hybrid(&self) -> bool {
+        matches!(self, HostKey::V2(_))
+    }
 }
 
 impl AsRef<HostKey> for HostKey {
@@ -28,3 +95,248 @@ impl AsRef<HostKey> for HostKey {
         self
     }
 }
+
+#[cfg(test)]
+mod tests {
+    use openssl::ec::{EcGroup, EcKey};
+    use openssl::pkey::Private;
+
+    use super::*;
+    use crate::openssl_extensions::generate_ml_kem;
+    use crate::test_utils::get_test_key_and_cert_hybrid;
+    use crate::Error;
+
+    fn to_public_key(key: &PKey<Private>) -> Result<PKey<Public>> {
+        let der = key.public_key_to_der()?;
+        Ok(PKey::public_key_from_der(&der)?)
+    }
+
+    #[test]
+    fn test_hostkey_v1_variant() {
+        let (_, ec_key) = crate::test_utils::get_test_key_and_cert();
+        let hostkey = HostKey::V1(ec_key.public_key().unwrap());
+
+        assert!(!hostkey.is_hybrid(), "V1 HostKey should not be hybrid");
+        assert!(matches!(hostkey, HostKey::V1(_)));
+    }
+
+    #[test]
+    fn test_hostkey_v2_variant() {
+        let (_, ec_key, mlkem_key) = get_test_key_and_cert_hybrid();
+        let hybrid = HybridPKey::new(
+            ec_key.public_key().unwrap(),
+            mlkem_key.public_key().unwrap(),
+        )
+        .unwrap();
+        let hostkey = HostKey::V2(hybrid);
+
+        assert!(hostkey.is_hybrid(), "V2 HostKey should be hybrid");
+        assert!(matches!(hostkey, HostKey::V2(_)));
+    }
+
+    #[test]
+    fn test_hostkey_ec_key_access() {
+        let (_, ec_key, mlkem_key) = get_test_key_and_cert_hybrid();
+        let hybrid = HybridPKey::new(
+            ec_key.public_key().unwrap(),
+            mlkem_key.public_key().unwrap(),
+        )
+        .unwrap();
+
+        let v1_key = HostKey::V1(ec_key.public_key().unwrap());
+        let v2_key = HostKey::V2(hybrid);
+
+        assert!(v1_key.ec_key().unwrap().public_key_to_der().is_ok());
+        assert!(v2_key.ec_key().unwrap().public_key_to_der().is_ok());
+    }
+
+    #[test]
+    fn test_hostkey_v2_mlkem_key_access() {
+        let (_, ec_key, mlkem_key) = get_test_key_and_cert_hybrid();
+        let hybrid = HybridPKey::new(
+            ec_key.public_key().unwrap(),
+            mlkem_key.public_key().unwrap(),
+        )
+        .unwrap();
+        let hostkey = HostKey::V2(hybrid);
+
+        assert!(hostkey.mlkem_key().unwrap().public_key_to_der().is_ok());
+    }
+
+    #[test]
+    fn test_hostkey_v1_has_no_mlkem_key() {
+        let (_, ec_key) = crate::test_utils::get_test_key_and_cert();
+        let hostkey = HostKey::V1(ec_key.public_key().unwrap());
+
+        assert!(hostkey.mlkem_key().is_none());
+    }
+
+    #[test]
+    fn test_hybrid_public_key_structure() {
+        let (_, ec_key, mlkem_key) = get_test_key_and_cert_hybrid();
+        let hybrid = HybridPKey::new(
+            ec_key.public_key().unwrap(),
+            mlkem_key.public_key().unwrap(),
+        )
+        .unwrap();
+
+        // Verify both components are present and valid
+        assert!(!hybrid.ec_key().public_key_to_der().unwrap().is_empty());
+        assert!(!hybrid.mlkem_key().public_key_to_der().unwrap().is_empty());
+    }
+
+    #[test]
+    fn test_hybrid_pkey_invalid_ec_curve() {
+        // Generate a P-256 key instead of P-521
+        let group = EcGroup::from_curve_name(Nid::X9_62_PRIME256V1).unwrap();
+        let wrong_ec_key = PKey::from_ec_key(EcKey::generate(&group).unwrap()).unwrap();
+
+        let (_, _, mlkem_key) = get_test_key_and_cert_hybrid();
+
+        let result = HybridPKey::new(
+            to_public_key(&wrong_ec_key).unwrap(),
+            mlkem_key.public_key().unwrap(),
+        );
+        assert!(result.is_err(), "Should reject EC key with wrong curve");
+
+        if let Err(Error::RetrInvKey {
+            what,
+            kind,
+            value,
+            exp,
+        }) = result
+        {
+            assert_eq!(what, "curve");
+            assert_eq!(kind, "ECDH key");
+            assert_eq!(value, "prime256v1");
+            assert_eq!(exp, "secp521r1");
+        } else {
+            panic!("Expected RetrInvKey error for wrong curve");
+        }
+    }
+
+    #[test]
+    fn test_hybrid_pkey_invalid_mlkem_type() {
+        let (_, ec_key, _) = get_test_key_and_cert_hybrid();
+
+        // Generate ML-KEM-512 instead of ML-KEM-1024
+        let wrong_mlkem_key = generate_ml_kem(KeyType::ML_KEM_512).unwrap();
+
+        let result = HybridPKey::new(
+            ec_key.public_key().unwrap(),
+            to_public_key(&wrong_mlkem_key).unwrap(),
+        );
+        assert!(result.is_err(), "Should reject ML-KEM key with wrong type");
+
+        if let Err(Error::RetrInvKey {
+            what,
+            kind,
+            value,
+            exp,
+        }) = result
+        {
+            assert_eq!(what, "key type");
+            assert_eq!(kind, "ML-KEM key");
+            assert_eq!(value, "ML-KEM-512");
+            assert_eq!(exp, "ML-KEM-1024");
+        } else {
+            panic!("Expected RetrInvKey error for wrong ML-KEM type");
+        }
+    }
+
+    #[test]
+    fn test_hybrid_pkey_clone() {
+        let (_, ec_key, mlkem_key) = get_test_key_and_cert_hybrid();
+        let hybrid = HybridPKey::new(
+            ec_key.public_key().unwrap(),
+            mlkem_key.public_key().unwrap(),
+        )
+        .unwrap();
+
+        let cloned = hybrid.clone();
+
+        // Verify both original and clone have valid keys
+        assert!(!hybrid.ec_key().public_key_to_der().unwrap().is_empty());
+        assert!(!hybrid.mlkem_key().public_key_to_der().unwrap().is_empty());
+        assert!(!cloned.ec_key().public_key_to_der().unwrap().is_empty());
+        assert!(!cloned.mlkem_key().public_key_to_der().unwrap().is_empty());
+
+        // Verify the keys are equivalent
+        assert_eq!(
+            hybrid.ec_key().public_key_to_der().unwrap(),
+            cloned.ec_key().public_key_to_der().unwrap()
+        );
+        assert_eq!(
+            hybrid.mlkem_key().public_key_to_der().unwrap(),
+            cloned.mlkem_key().public_key_to_der().unwrap()
+        );
+    }
+
+    #[test]
+    fn test_hostkey_clone() {
+        let (_, ec_key, mlkem_key) = get_test_key_and_cert_hybrid();
+        let hybrid = HybridPKey::new(
+            ec_key.public_key().unwrap(),
+            mlkem_key.public_key().unwrap(),
+        )
+        .unwrap();
+
+        // Test cloning V1
+        let v1_key = HostKey::V1(ec_key.public_key().unwrap());
+        let v1_cloned = v1_key.clone();
+        assert!(!v1_cloned.is_hybrid());
+        assert_eq!(
+            v1_key.ec_key().unwrap().public_key_to_der().unwrap(),
+            v1_cloned.ec_key().unwrap().public_key_to_der().unwrap()
+        );
+
+        // Test cloning V2
+        let v2_key = HostKey::V2(hybrid);
+        let v2_cloned = v2_key.clone();
+        assert!(v2_cloned.is_hybrid());
+        assert_eq!(
+            v2_key.ec_key().unwrap().public_key_to_der().unwrap(),
+            v2_cloned.ec_key().unwrap().public_key_to_der().unwrap()
+        );
+        assert_eq!(
+            v2_key.mlkem_key().unwrap().public_key_to_der().unwrap(),
+            v2_cloned.mlkem_key().unwrap().public_key_to_der().unwrap()
+        );
+    }
+
+    #[test]
+    fn test_hybrid_pkey_as_ref() {
+        let (_, ec_key, mlkem_key) = get_test_key_and_cert_hybrid();
+        let hybrid = HybridPKey::new(
+            ec_key.public_key().unwrap(),
+            mlkem_key.public_key().unwrap(),
+        )
+        .unwrap();
+
+        let hybrid_ref: &HybridPKey = hybrid.as_ref();
+        assert!(!hybrid_ref.ec_key().public_key_to_der().unwrap().is_empty());
+        assert!(!hybrid_ref
+            .mlkem_key()
+            .public_key_to_der()
+            .unwrap()
+            .is_empty());
+    }
+
+    #[test]
+    fn test_hostkey_as_ref() {
+        let (_, ec_key, mlkem_key) = get_test_key_and_cert_hybrid();
+        let hybrid = HybridPKey::new(
+            ec_key.public_key().unwrap(),
+            mlkem_key.public_key().unwrap(),
+        )
+        .unwrap();
+
+        let v1_key = HostKey::V1(ec_key.public_key().unwrap());
+        let v1_ref: &HostKey = v1_key.as_ref();
+        assert!(!v1_ref.is_hybrid());
+
+        let v2_key = HostKey::V2(hybrid);
+        let v2_ref: &HostKey = v2_key.as_ref();
+        assert!(v2_ref.is_hybrid());
+    }
+}

rust/pv/src/req/keyslot.rs

@@ -4,13 +4,11 @@
 
 //! IBM Z Host key-slot implementations.
 
-use openssl::hash::MessageDigest;
+use openssl::hash::{DigestBytes, MessageDigest};
 use openssl::pkey::{PKey, PKeyRef, Private, Public};
 
-use super::ec_coord::EcPubKeyCoord;
-use super::encrypt::Encrypt;
-use crate::crypto::{derive_aes256_gcm_key, encrypt_aead, hash};
-use crate::request::HostKey;
+use crate::crypto::{derive_aes256_gcm_key, derive_aes256_gcm_key_hybrid, encrypt_aead, hash};
+use crate::req::{EcPubKeyCoord, Encrypt, HostKey, HybridPKey};
 use crate::Result;
 
 /// IBM Z Host key-slot
@@ -71,12 +69,107 @@ impl Encrypt for KeyslotV1 {
     }
 }
 
+/// IBM Z hybrid (V2) Host key-slot
+///
+/// Layout in binary format:
+/// ```none
+/// _______________________________________________________________
+/// |   Public Host Key Hash (64)                                 |
+/// |   Wrapped(=Encrypted) Request Protection Key(32)            |
+/// |   Key Slot Tag (16)                                         |
+/// |   ML-KEM Ciphertext (1568)                                  |
+/// |_____________________________________________________________|
+/// ```
+#[derive(Debug, Clone)]
+pub struct KeyslotV2 {
+    ec_hostkey: PKey<Public>,
+    mlkem_hostkey: PKey<Public>,
+}
+
+impl KeyslotV2 {
+    /// Size of a hybrid host-key hash
+    pub const PHKH_SIZE: u32 = 0x40;
+    /// Size of a complete V2 keyslot in bytes
+    pub const SIZE: usize = 1680;
+
+    /// Creates a new HybridKeyslot from the provided hybrid public key
+    pub fn new(hostkey: HybridPKey) -> Self {
+        let HybridPKey { ec_key, mlkem_key } = hostkey;
+        Self {
+            ec_hostkey: ec_key,
+            mlkem_hostkey: mlkem_key,
+        }
+    }
+
+    /// calculates the sha512 of this hybrid key
+    pub fn sha512(&self) -> Result<DigestBytes> {
+        let mut phk_buf = Vec::<u8>::with_capacity(160 + 1568);
+        let ec_phk: EcPubKeyCoord = self.ec_hostkey.as_ref().try_into()?;
+        phk_buf.extend_from_slice(ec_phk.as_ref());
+        phk_buf.extend_from_slice(&self.mlkem_hostkey.raw_public_key()?);
+        assert_eq!(phk_buf.len(), 160 + 1568);
+
+        let hash = hash(MessageDigest::sha512(), &phk_buf)?;
+        assert_eq!(hash.len(), 64);
+        Ok(hash)
+    }
+
+    /// Encrypts `secret` using `self` and `priv_key` the encryption.
+    ///
+    /// # Returns
+    /// the encrypted data.
+    ///
+    /// # Errors
+    ///
+    /// This function will return an error if OpenSSL could not encrypt the secret.
+    pub fn encrypt(&self, secret: &[u8], priv_key: &PKeyRef<Private>) -> Result<Vec<u8>> {
+        let mut res = Vec::with_capacity(1680);
+        self.encrypt_to(secret, priv_key, &mut res)?;
+        Ok(res)
+    }
+
+    /// Encrypts the given request protection key `prot_key`.
+    ///
+    /// The AES256 encryption key is derived from `self` as public key, and `priv_key` as private
+    /// key.
+    ///
+    /// # Returns
+    /// The encrypted HybridKeyslot.
+    ///
+    /// # Errors
+    ///
+    /// This function will return an error if OpenSSL could not encrypt the secret.
+    fn encrypt_to(
+        &self,
+        prot_key: &[u8],
+        priv_key: &PKeyRef<Private>,
+        to: &mut Vec<u8>,
+    ) -> Result<()> {
+        let (derived_key, ciphertext) =
+            derive_aes256_gcm_key_hybrid(priv_key, &self.ec_hostkey, &self.mlkem_hostkey)?;
+        let mut wrpk_and_kst =
+            encrypt_aead(&derived_key.into(), &[0; 12], &[], prot_key)?.into_buf();
+        assert_eq!(wrpk_and_kst.len(), 48);
+
+        to.reserve(1680);
+        let hash = self.sha512()?;
+        assert_eq!(hash.len(), 64);
+        to.extend_from_slice(&hash);
+        to.append(&mut wrpk_and_kst);
+        assert_eq!(ciphertext.len(), 1568);
+        to.extend_from_slice(&ciphertext);
+        Ok(())
+    }
+}
+
 /// Versioned keyslot container
 #[non_exhaustive]
 #[derive(Debug, Clone)]
 pub enum Keyslot {
     /// V1 key-slots with ECDH keys
     V1(KeyslotV1),
+    /// V2 key-slots with hybrid ECDH/ML-KEM keys
+    V2(KeyslotV2),
 }
 
 impl Keyslot {
@@ -84,27 +177,34 @@ impl Keyslot {
     pub fn new(hostkey: HostKey) -> Self {
         match hostkey {
             HostKey::V1(key) => Keyslot::V1(KeyslotV1::new(key)),
+            HostKey::V2(key) => Keyslot::V2(KeyslotV2::new(key)),
         }
     }
 
     /// Return the public host key hash size for the given version of the key-slot in bytes
+    #[must_use]
     pub fn phkh_size(&self) -> u32 {
         match self {
             Keyslot::V1(_) => KeyslotV1::PHKH_SIZE,
+            Keyslot::V2(_) => KeyslotV2::PHKH_SIZE,
         }
     }
 
     /// Return the size of the key-slot in bytes
+    #[must_use]
     pub fn size(&self) -> usize {
         match self {
             Keyslot::V1(_) => KeyslotV1::SIZE,
+            Keyslot::V2(_) => KeyslotV2::SIZE,
         }
     }
 
     /// Return whether the key-slot uses hybrid keys
+    #[must_use]
     pub fn is_hybrid(&self) -> bool {
         match self {
             Keyslot::V1(_) => false,
+            Keyslot::V2(_) => true,
         }
     }
 }
@@ -118,6 +218,7 @@ impl Encrypt for Keyslot {
     ) -> Result<()> {
         match self {
             Keyslot::V1(ks) => ks.encrypt_to(secret, priv_key, to),
+            Keyslot::V2(ks) => ks.encrypt_to(secret, priv_key, to),
         }
     }
 }
@@ -128,11 +229,17 @@ impl From<PKey<Public>> for Keyslot {
     }
 }
 
+impl From<HybridPKey> for Keyslot {
+    fn from(key: HybridPKey) -> Self {
+        Keyslot::V2(KeyslotV2::new(key))
+    }
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;
     use crate::get_test_asset;
-    use crate::test_utils::*;
+    use crate::test_utils::{DeterministicTestRandGuard, *};
 
     #[test]
     fn keyslot() {
@@ -147,4 +254,214 @@ mod tests {
         let encr_ks = keyslot.encrypt(&[0x16u8; 32], &cust_key).unwrap();
         assert_ne!(exp_keyslot, encr_ks);
     }
+
+    #[test]
+    fn keyslot_v2() {
+        // Install deterministic RNG for reproducible encryption
+        let _guard = DeterministicTestRandGuard::install(&[0x42; 64], &[0x17; 16]).unwrap();
+
+        let (cust_key, host_key1, host_key2) = get_test_keys_hybrid();
+        let host_key = HostKey::V2(HybridPKey::new(host_key1, host_key2).unwrap());
+        let exp_keyslot = vec![
+            255, 94, 191, 53, 220, 196, 47, 37, 93, 227, 234, 101, 1, 174, 171, 68, 42, 136, 92,
+            238, 72, 6, 17, 77, 231, 225, 174, 22, 222, 188, 212, 15, 248, 145, 72, 126, 139, 17,
+            233, 225, 156, 46, 233, 151, 54, 2, 175, 88, 215, 254, 243, 222, 37, 81, 50, 110, 18,
+            76, 252, 12, 210, 146, 66, 23, 123, 246, 141, 14, 70, 157, 73, 124, 205, 112, 192, 82,
+            160, 243, 2, 154, 134, 145, 176, 147, 30, 217, 221, 93, 170, 239, 165, 37, 30, 192, 47,
+            94, 129, 165, 12, 137, 239, 12, 180, 199, 240, 160, 180, 205, 117, 84, 16, 148, 51, 48,
+            243, 216, 50, 132, 187, 115, 137, 3, 109, 145, 172, 159, 224, 25, 63, 96, 241, 105, 89,
+            35, 42, 180, 248, 35, 166, 81, 116, 175, 179, 252, 81, 188, 189, 42, 17, 60, 231, 132,
+            32, 111, 90, 138, 201, 16, 3, 97, 246, 130, 173, 85, 218, 187, 232, 92, 52, 120, 56,
+            142, 137, 101, 31, 21, 194, 186, 198, 38, 240, 58, 150, 93, 86, 18, 186, 5, 12, 41, 37,
+            94, 162, 119, 16, 237, 82, 252, 178, 159, 57, 58, 162, 20, 173, 140, 10, 172, 203, 241,
+            94, 110, 117, 32, 36, 217, 7, 168, 50, 105, 43, 33, 174, 140, 55, 88, 26, 233, 81, 253,
+            98, 121, 190, 70, 146, 84, 186, 6, 51, 181, 2, 59, 216, 45, 78, 4, 82, 90, 21, 180, 99,
+            239, 195, 254, 33, 171, 124, 97, 36, 110, 119, 142, 98, 125, 70, 236, 51, 192, 32, 8,
+            214, 224, 101, 169, 45, 173, 137, 194, 78, 114, 224, 76, 174, 188, 133, 227, 167, 169,
+            47, 241, 190, 15, 145, 217, 87, 254, 15, 150, 52, 138, 192, 230, 52, 129, 36, 8, 40,
+            37, 126, 103, 85, 86, 25, 78, 53, 243, 107, 193, 18, 102, 3, 83, 212, 5, 252, 224, 241,
+            7, 205, 220, 168, 183, 15, 37, 52, 190, 12, 9, 152, 124, 210, 65, 152, 210, 199, 81,
+            95, 240, 141, 196, 236, 8, 249, 221, 116, 130, 42, 52, 208, 218, 180, 27, 249, 59, 245,
+            21, 165, 142, 234, 140, 75, 89, 136, 250, 155, 157, 12, 154, 152, 188, 178, 227, 237,
+            124, 111, 176, 131, 227, 238, 164, 22, 88, 80, 217, 42, 217, 80, 148, 118, 12, 136, 95,
+            53, 69, 209, 131, 74, 91, 193, 253, 229, 146, 11, 58, 125, 19, 8, 229, 60, 177, 244,
+            74, 41, 92, 91, 62, 64, 221, 20, 213, 227, 4, 40, 22, 177, 155, 236, 147, 165, 27, 4,
+            99, 4, 151, 155, 82, 72, 151, 22, 102, 183, 192, 242, 18, 104, 146, 205, 107, 21, 254,
+            88, 23, 69, 246, 57, 217, 249, 124, 246, 54, 163, 244, 38, 74, 215, 144, 50, 45, 142,
+            36, 216, 88, 39, 70, 67, 88, 130, 1, 8, 205, 240, 159, 210, 205, 233, 237, 60, 81, 176,
+            112, 172, 187, 121, 239, 198, 43, 17, 49, 55, 170, 228, 243, 255, 76, 72, 121, 125,
+            157, 250, 93, 251, 55, 25, 4, 129, 67, 195, 30, 37, 6, 76, 10, 240, 178, 255, 151, 138,
+            36, 255, 32, 237, 133, 162, 130, 91, 9, 238, 67, 134, 4, 86, 225, 179, 166, 219, 4,
+            144, 7, 125, 248, 75, 132, 54, 56, 51, 237, 206, 252, 96, 9, 208, 140, 127, 143, 180,
+            32, 179, 254, 18, 233, 187, 122, 159, 172, 77, 204, 9, 179, 242, 153, 18, 138, 82, 13,
+            210, 140, 207, 9, 217, 216, 241, 106, 205, 109, 195, 223, 82, 172, 181, 48, 91, 124,
+            235, 85, 17, 18, 166, 216, 86, 120, 185, 54, 147, 156, 84, 106, 30, 235, 234, 114, 27,
+            23, 121, 210, 251, 136, 117, 53, 177, 28, 153, 144, 17, 70, 190, 206, 27, 135, 42, 227,
+            39, 243, 86, 170, 11, 63, 191, 102, 89, 92, 137, 103, 59, 142, 236, 203, 156, 231, 255,
+            30, 5, 86, 53, 59, 76, 181, 218, 184, 244, 21, 50, 100, 72, 81, 98, 193, 34, 58, 67,
+            150, 15, 17, 162, 216, 119, 213, 203, 50, 27, 158, 61, 105, 134, 151, 200, 68, 103, 74,
+            207, 12, 5, 163, 30, 198, 28, 41, 41, 97, 93, 251, 213, 133, 41, 225, 178, 67, 160, 85,
+            132, 146, 1, 201, 99, 49, 185, 27, 150, 213, 165, 134, 45, 248, 204, 67, 145, 49, 81,
+            35, 246, 25, 215, 209, 159, 106, 212, 14, 149, 193, 163, 90, 24, 83, 230, 178, 216,
+            194, 130, 118, 169, 81, 49, 49, 145, 96, 206, 216, 15, 134, 43, 130, 25, 110, 84, 39,
+            175, 223, 183, 209, 123, 5, 166, 244, 19, 89, 2, 47, 226, 3, 93, 156, 163, 67, 156,
+            237, 17, 59, 69, 99, 94, 32, 180, 64, 64, 115, 75, 44, 241, 150, 43, 169, 17, 36, 125,
+            216, 132, 92, 3, 244, 16, 83, 179, 192, 65, 133, 208, 19, 156, 17, 60, 54, 29, 253,
+            237, 18, 158, 145, 142, 232, 147, 2, 91, 21, 145, 125, 204, 243, 161, 245, 110, 140,
+            219, 206, 70, 235, 211, 167, 138, 104, 132, 248, 157, 65, 153, 216, 47, 125, 205, 237,
+            137, 220, 25, 228, 146, 194, 10, 169, 201, 224, 88, 119, 38, 140, 120, 125, 140, 46,
+            184, 221, 30, 10, 47, 34, 140, 173, 64, 38, 48, 77, 236, 206, 163, 111, 80, 46, 40,
+            232, 63, 247, 222, 25, 20, 246, 143, 9, 107, 172, 180, 84, 188, 234, 102, 87, 181, 173,
+            83, 14, 163, 170, 91, 29, 209, 93, 52, 158, 213, 6, 91, 71, 54, 244, 189, 198, 60, 21,
+            131, 210, 35, 18, 36, 164, 188, 87, 54, 73, 208, 115, 11, 248, 57, 107, 93, 23, 49,
+            129, 221, 61, 12, 172, 31, 199, 129, 196, 5, 184, 78, 226, 210, 83, 232, 153, 64, 17,
+            119, 243, 45, 73, 50, 129, 35, 94, 243, 146, 86, 136, 202, 86, 87, 97, 193, 59, 160,
+            181, 95, 150, 148, 117, 96, 31, 151, 97, 159, 53, 72, 171, 239, 210, 67, 207, 201, 109,
+            160, 230, 235, 176, 35, 235, 98, 128, 166, 195, 144, 200, 156, 7, 72, 242, 15, 95, 99,
+            69, 41, 219, 254, 244, 80, 158, 177, 64, 83, 11, 235, 98, 201, 130, 176, 119, 22, 214,
+            135, 215, 37, 65, 108, 91, 34, 94, 0, 153, 161, 87, 144, 177, 12, 122, 205, 11, 72,
+            233, 213, 63, 37, 12, 255, 235, 188, 194, 189, 65, 169, 185, 207, 131, 182, 243, 233,
+            30, 245, 39, 42, 188, 157, 28, 121, 231, 194, 121, 250, 121, 11, 28, 252, 98, 151, 238,
+            124, 56, 138, 106, 116, 187, 203, 21, 75, 239, 132, 19, 62, 43, 42, 12, 214, 87, 225,
+            217, 169, 134, 183, 193, 241, 175, 140, 36, 147, 248, 86, 6, 58, 212, 72, 112, 0, 56,
+            168, 128, 68, 253, 173, 225, 152, 167, 138, 254, 97, 123, 227, 163, 135, 198, 49, 49,
+            138, 249, 234, 245, 78, 150, 140, 170, 199, 41, 206, 246, 19, 117, 241, 27, 112, 102,
+            4, 94, 237, 30, 0, 68, 252, 163, 205, 10, 63, 146, 147, 37, 153, 197, 52, 162, 50, 250,
+            219, 130, 197, 3, 60, 246, 133, 83, 140, 103, 227, 50, 212, 121, 165, 114, 139, 225,
+            195, 145, 107, 249, 127, 194, 23, 112, 141, 242, 14, 218, 42, 131, 19, 245, 143, 73,
+            79, 194, 135, 224, 171, 249, 169, 129, 160, 153, 75, 66, 26, 12, 254, 180, 212, 229,
+            172, 134, 159, 122, 212, 219, 21, 29, 33, 11, 176, 149, 73, 169, 26, 150, 96, 133, 90,
+            217, 18, 37, 244, 48, 249, 4, 180, 129, 9, 45, 219, 106, 215, 28, 81, 118, 48, 98, 109,
+            167, 72, 107, 187, 78, 127, 251, 184, 170, 74, 57, 188, 91, 196, 229, 251, 70, 163, 68,
+            227, 238, 71, 115, 155, 246, 146, 97, 208, 21, 245, 62, 127, 47, 79, 131, 217, 41, 153,
+            52, 237, 159, 60, 98, 18, 169, 149, 6, 84, 135, 2, 45, 170, 165, 213, 201, 127, 23,
+            209, 2, 158, 235, 240, 195, 255, 76, 54, 189, 113, 50, 105, 230, 191, 217, 29, 46, 181,
+            80, 197, 60, 177, 243, 61, 52, 24, 140, 134, 147, 176, 198, 22, 92, 156, 217, 189, 134,
+            17, 122, 53, 49, 14, 87, 128, 99, 207, 123, 113, 169, 195, 206, 127, 211, 21, 216, 166,
+            18, 137, 110, 148, 70, 26, 54, 52, 113, 189, 45, 89, 254, 218, 247, 193, 71, 19, 153,
+            35, 179, 49, 237, 199, 176, 251, 143, 95, 115, 195, 3, 122, 161, 243, 220, 39, 102,
+            147, 134, 25, 172, 164, 167, 110, 123, 221, 177, 28, 236, 100, 165, 186, 179, 45, 189,
+            183, 76, 171, 127, 209, 108, 220, 83, 207, 136, 98, 54, 76, 37, 188, 57, 157, 204, 109,
+            150, 181, 110, 57, 5, 26, 168, 34, 11, 117, 3, 184, 147, 155, 122, 244, 251, 215, 1,
+            211, 226, 185, 214, 120, 206, 212, 75, 203, 174, 140, 20, 93, 93, 207, 28, 15, 122, 9,
+            83, 98, 107, 51, 202, 151, 220, 42, 95, 17, 141, 141, 201, 149, 253, 55, 169, 170, 237,
+            166, 92, 92, 20, 89, 124, 167, 102, 161, 87, 97, 88, 20, 245, 175, 32, 111, 0, 2, 192,
+            25, 63, 182, 10, 226, 165, 162, 223, 35, 243, 198, 189, 167, 137, 134, 207, 84, 240, 8,
+            95, 137, 31, 159, 58, 211, 161, 94, 150, 54, 188, 145, 253, 206, 156, 130, 121, 192,
+            221, 73, 249, 92, 91, 184, 211, 131, 206, 205, 183, 159, 195, 170, 47, 13, 131, 6, 132,
+            103, 121, 40, 252, 250, 251, 85, 253, 68, 66, 211, 24, 104, 48, 150, 176, 62, 201, 161,
+            93, 204, 120, 196, 159, 208, 199, 96, 228, 239, 29, 239, 128, 156, 14, 131, 25, 27,
+            157, 249, 253, 250, 193, 148, 133, 59, 138, 202, 239,
+        ];
+
+        let keyslot = Keyslot::new(host_key);
+        let encr_keyslot = keyslot.encrypt(&[0x17u8; 32], &cust_key).unwrap();
+
+        assert_eq!(encr_keyslot, exp_keyslot);
+    }
+
+    #[test]
+    fn test_keyslot_v2_constants() {
+        // Test V2 keyslot constants
+        assert_eq!(
+            KeyslotV2::SIZE,
+            1680,
+            "V2 keyslot size should be 1680 bytes"
+        );
+        assert_eq!(
+            KeyslotV2::PHKH_SIZE,
+            0x40,
+            "V2 PHKH size should be 64 bytes (SHA-512)"
+        );
+    }
+
+    #[test]
+    fn test_keyslot_v2_creation() {
+        let (_, ec_key, mlkem_key) = get_test_key_and_cert_hybrid();
+        let hybrid = HybridPKey::new(
+            ec_key.public_key().unwrap(),
+            mlkem_key.public_key().unwrap(),
+        )
+        .unwrap();
+
+        let keyslot = KeyslotV2::new(hybrid);
+
+        // Verify keyslot was created successfully
+        assert!(keyslot.ec_hostkey.public_key_to_der().is_ok());
+        assert!(keyslot.mlkem_hostkey.public_key_to_der().is_ok());
+    }
+
+    #[test]
+    fn test_keyslot_enum_v1_variant() {
+        let (_, host_key) = get_test_keys();
+        let keyslot = Keyslot::V1(KeyslotV1(host_key));
+
+        assert_eq!(keyslot.phkh_size(), KeyslotV1::PHKH_SIZE);
+        assert_eq!(keyslot.size(), KeyslotV1::SIZE);
+        assert!(matches!(keyslot, Keyslot::V1(_)));
+    }
+
+    #[test]
+    fn test_keyslot_enum_v2_variant() {
+        let (_, ec_key, mlkem_key) = get_test_key_and_cert_hybrid();
+        let hybrid = HybridPKey::new(
+            ec_key.public_key().unwrap(),
+            mlkem_key.public_key().unwrap(),
+        )
+        .unwrap();
+        let keyslot = Keyslot::V2(KeyslotV2::new(hybrid));
+
+        assert_eq!(keyslot.phkh_size(), KeyslotV2::PHKH_SIZE);
+        assert_eq!(keyslot.size(), KeyslotV2::SIZE);
+        assert!(matches!(keyslot, Keyslot::V2(_)));
+    }
+
+    #[test]
+    fn test_keyslot_from_hostkey_v1() {
+        let (_, ec_key) = get_test_keys();
+        let hostkey = HostKey::V1(ec_key);
+        let keyslot = Keyslot::new(hostkey);
+
+        assert!(matches!(keyslot, Keyslot::V1(_)));
+        assert_eq!(keyslot.size(), KeyslotV1::SIZE);
+    }
+
+    #[test]
+    fn test_keyslot_from_hostkey_v2() {
+        let (_, ec_key, mlkem_key) = get_test_key_and_cert_hybrid();
+        let hybrid = HybridPKey::new(
+            ec_key.public_key().unwrap(),
+            mlkem_key.public_key().unwrap(),
+        )
+        .unwrap();
+        let hostkey = HostKey::V2(hybrid);
+        let keyslot = Keyslot::new(hostkey);
+
+        assert!(matches!(keyslot, Keyslot::V2(_)));
+        assert_eq!(keyslot.size(), KeyslotV2::SIZE);
+    }
+
+    #[test]
+    fn test_keyslot_from_hybrid_public_key() {
+        let (_, ec_key, mlkem_key) = get_test_key_and_cert_hybrid();
+        let hybrid = HybridPKey::new(
+            ec_key.public_key().unwrap(),
+            mlkem_key.public_key().unwrap(),
+        )
+        .unwrap();
+
+        let keyslot: Keyslot = hybrid.into();
+        assert!(matches!(keyslot, Keyslot::V2(_)));
+    }
+
+    #[test]
+    fn test_keyslot_sizes() {
+        // Document the sizes for V1 and V2
+        assert_eq!(KeyslotV1::SIZE, 80, "V1 keyslot size");
+        assert_eq!(
+            KeyslotV2::SIZE,
+            1680,
+            "V2 keyslot size (includes ML-KEM ciphertext)"
+        );
+    }
 }

rust/pv/src/req/mod.rs

@@ -17,9 +17,10 @@ mod request;
 
 // Re-export public types
 pub use context::ReqEncrCtx;
+pub(crate) use ec_coord::get_pub_ecdh_points;
 pub use ec_coord::EcPubKeyCoord;
 pub use encrypt::{Aad, Encrypt};
 pub use header::RequestHdr;
-pub use hostkey::HostKey;
-pub use keyslot::{Keyslot, KeyslotV1};
+pub use hostkey::{HostKey, HybridPKey};
+pub use keyslot::{Keyslot, KeyslotV1, KeyslotV2};
 pub use request::{BinReqValues, Request};

rust/pv/src/req/request.rs

@@ -51,7 +51,7 @@ pub trait Request {
     /// Add a host-key to this request
     ///
     /// Must be called at least once, otherwise {`Request::encrypt`} will fail
-    fn add_hostkey(&mut self, hostkey: HostKey);
+    fn add_hostkey(&mut self, hostkey: HostKey) -> Result<()>;
 }
 
 /// A struct to represent some parts of a binary/encrypted request.
@@ -148,10 +148,9 @@ mod tests {
     use zerocopy::IntoBytes;
 
     use super::*;
+    use crate::crypto::SymKey;
     use crate::get_test_asset;
-    use crate::req::header::RequestHdr;
-    use crate::req::{Aad, HostKey, Keyslot, ReqEncrCtx};
-    use crate::request::SymKey;
+    use crate::req::{Aad, HybridPKey, Keyslot};
     use crate::test_utils::*;
 
     static TEST_MAGIC: [u8; 8] = 0x12345689abcdef00u64.to_be_bytes();
@@ -187,6 +186,37 @@ mod tests {
         assert_eq!(&aad, &aad_exp);
     }
 
+    #[test]
+    fn encr_build_aad_v2() {
+        let (cust_key, host_key1, host_key2) = get_test_keys_hybrid();
+        let ks = Keyslot::new(HostKey::V2(HybridPKey::new(host_key1, host_key2).unwrap()));
+        let ctx = ReqEncrCtx::new_aes_256(
+            Some([0x11; 12]),
+            Some(cust_key),
+            Some(SymKey::Aes256([0x17; 32].into())),
+        )
+        .unwrap();
+        let v = [0x55; 8];
+        let aad = Aad::Plain(&v);
+        let aad = ctx
+            .build_aad(0x200, &vec![aad, Aad::Ks(&ks)], 16, Some(TEST_MAGIC))
+            .unwrap();
+
+        let aad_exp = vec![
+            0x12, 0x34, 0x56, 0x89, 0xab, 0xcd, 0xef, 0, // progr
+            0, 0, 2, 0, // vers
+            0, 0, 6, 232, // size
+            0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, // iv
+            0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // res
+            1, // nks
+            0, 0, 0, 0, // res
+            0, 0, 0, 16, // sea
+            0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, // aad
+        ];
+        // only compare non-randomized part
+        assert_eq!(aad[..aad_exp.len()], aad_exp);
+    }
+
     #[test]
     fn encr_build_aad_nks_no() {
         let ctx = ReqEncrCtx::new_aes_256(Some([0x11; 12]), None, None).unwrap();
@@ -210,6 +240,21 @@ mod tests {
         let aad = ctx.build_aad(0x200, &aad, 16, Some(TEST_MAGIC));
         assert!(matches!(aad, Err(Error::ManyHostkeys)));
     }
+
+    #[test]
+    fn encr_build_aad_nks_many_v2() {
+        let (_, host_key1, host_key2) = get_test_keys_hybrid();
+        let host_key = HostKey::V2(HybridPKey::new(host_key1, host_key2).unwrap());
+        let ctx = ReqEncrCtx::new_aes_256(Some([0x11; 12]), None, None).unwrap();
+
+        let ks: Vec<Keyslot> = (0..257).map(|_| Keyslot::new(host_key.clone())).collect();
+        let mut aad = Vec::<Aad>::new();
+        ks.iter().for_each(|ks| aad.push(Aad::Ks(ks)));
+
+        let aad = ctx.build_aad(0x200, &aad, 16, Some(TEST_MAGIC));
+        assert!(matches!(aad, Err(Error::ManyHostkeys)));
+    }
+
     #[test]
     fn encr_build_aad_nks() {
         let (_, host_key) = get_test_keys();
@@ -229,6 +274,25 @@ mod tests {
         assert_eq!(aad.get(39).unwrap(), &3u8);
     }
 
+    #[test]
+    fn encr_build_aad_nks_v2() {
+        let (_, host_key1, host_key2) = get_test_keys_hybrid();
+        let host_key = HostKey::V2(HybridPKey::new(host_key1, host_key2).unwrap());
+        let ctx = ReqEncrCtx::new_aes_256(Some([0x11; 12]), None, None).unwrap();
+
+        let ks = [
+            Keyslot::new(host_key.clone()),
+            Keyslot::new(host_key.clone()),
+            Keyslot::new(host_key),
+        ];
+        let mut aad = Vec::<Aad>::new();
+        ks.iter().for_each(|ks| aad.push(Aad::Ks(ks)));
+
+        let aad = ctx.build_aad(0x200, &aad, 16, Some(TEST_MAGIC)).unwrap();
+
+        assert_eq!(aad.get(39).unwrap(), &3u8);
+    }
+
     #[test]
     fn req_hdr() {
         let hdr = RequestHdr::new(0x200, 22, [0x11; 12], 15, 44, None);

rust/pv/src/test_utils.rs

@@ -89,6 +89,27 @@ pub fn get_test_key_and_cert() -> (PKey<Private>, X509) {
     (cust_key, host_key)
 }
 
+pub fn get_test_key_and_cert_hybrid() -> (PKey<Private>, X509, X509) {
+    let pub_key = get_test_asset!("keys/public_cust.bin");
+    let priv_key = get_test_asset!("keys/private_cust.bin");
+    let host_key = get_test_asset!("keys/host.ec.crt");
+    let host_keys = get_test_asset!("keys/host.hybrid.crt");
+
+    assert_eq!(pub_key.len(), 160);
+    assert_eq!(priv_key.len(), 80);
+
+    let cust_key = get_keypair(pub_key, priv_key).unwrap();
+    let host_key1 = X509::from_pem(host_key).unwrap();
+    let host_keys = X509::stack_from_pem(host_keys).unwrap();
+    assert_eq!(host_keys.len(), 2);
+
+    println!("host_key1 = {host_key1:?}");
+    println!("host_keys[0] = {:?}", host_keys[0]);
+    println!("host_keys[1] = {:?}", host_keys[1]);
+
+    (cust_key, host_key1, host_keys[1].clone())
+}
+
 /// TEST ONLY! Get a fixed private/public pair and a fixed public key
 ///
 /// Intended for TESTING only. All parts of the key including the private key are checked in git and
@@ -98,6 +119,15 @@ pub fn get_test_keys() -> (PKey<Private>, PKey<Public>) {
     (cust_key, host.public_key().unwrap())
 }
 
+pub fn get_test_keys_hybrid() -> (PKey<Private>, PKey<Public>, PKey<Public>) {
+    let (cust_key, host_key_1, host_key_2) = get_test_key_and_cert_hybrid();
+    (
+        cust_key,
+        host_key_1.public_key().unwrap(),
+        host_key_2.public_key().unwrap(),
+    )
+}
+
 fn read_ecdh_pubkey(coords: &[u8]) -> Result<PKey<Public>, ErrorStack> {
     assert!(coords.len() == 160);
     let x = BigNum::from_slice(&coords[..80])?;

rust/pv/src/uvattest/arcb.rs

@@ -4,6 +4,7 @@
 
 use std::mem::size_of;
 
+use pv_core::static_assert;
 use zerocopy::{BigEndian, FromBytes, Immutable, IntoBytes, KnownLayout, U32};
 
 use super::additional::{FW_STATE_SIZE, PHKH_SIZE, SECRET_STORE_HASH_SIZE};
@@ -14,7 +15,7 @@ use crate::misc::Flags;
 use crate::req::{Aad, BinReqValues, HostKey, Keyslot, ReqEncrCtx};
 use crate::request::{Confidential, MagicValue, Request, RequestVersion, SymKey, Zeroize};
 use crate::uv::UvFlags;
-use crate::{assert_size, static_assert, Error, Result};
+use crate::{assert_size, Error, Result};
 #[cfg(doc)]
 use crate::{
     request::SymKeyType,
@@ -60,9 +61,9 @@ use crate::{
 /// let hkd = s390_pv::misc::read_certs(&std::fs::read("host-key-document.crt")?)?;
 /// // IBM issued HKD certificates typically have one X509
 /// let hkd = hkd.first().unwrap().public_key()?;
-/// arcb.add_hostkey(HostKey::V1(hkd));
+/// arcb.add_hostkey(HostKey::V1(hkd))?;
 /// // you can add multiple hostkeys
-/// // arcb.add_hostkey(another_hkd);
+/// // arcb.add_hostkey(HostKey::V1(another_hkd))?;
 /// // encrypt it
 /// let ctx = ReqEncrCtx::random(SymKeyType::Aes256Gcm)?;
 /// let arcb = arcb.encrypt(&ctx)?;
@@ -106,7 +107,13 @@ impl AttestationRequest {
 
     /// Returns a reference to the flags of this [`AttestationRequest`].
     pub fn flags(&self) -> &AttestationFlags {
-        &self.aad.flags
+        self.aad.flags()
+    }
+
+    /// Returns the request version, derived from the type of added host-keys.
+    /// Returns [`AttestationVersion::One`] if no host-keys have been added yet.
+    pub fn version(&self) -> AttestationVersion {
+        self.version
     }
 
     /// Returns a copy of the confidential data of this [`AttestationRequest`].
@@ -142,6 +149,7 @@ impl AttestationRequest {
         let values = BinReqValues::get(arcb)?;
         match values.version().try_into()? {
             AttestationVersion::One => (),
+            AttestationVersion::Two => (),
         };
 
         Ok(values)
@@ -235,8 +243,19 @@ impl Request for AttestationRequest {
         ctx.encrypt_aead(&aad, conf).map(|res| res.into_buf())
     }
 
-    fn add_hostkey(&mut self, hostkey: HostKey) {
-        self.keyslots.push(Keyslot::new(hostkey))
+    fn add_hostkey(&mut self, hostkey: HostKey) -> Result<()> {
+        match self.version {
+            AttestationVersion::One if !hostkey.is_hybrid() => Ok(()),
+            AttestationVersion::Two if hostkey.is_hybrid() => Ok(()),
+            AttestationVersion::One => Err(Error::InvalidHkd(
+                "Add classical hostkey to a v1 attestation request".to_string(),
+            )),
+            AttestationVersion::Two => Err(Error::InvalidHkd(
+                "Add hybrid key to a v2 attetstation request".to_string(),
+            )),
+        }?;
+        self.keyslots.push(Keyslot::new(hostkey));
+        Ok(())
     }
 }
 
@@ -246,6 +265,8 @@ impl Request for AttestationRequest {
 pub enum AttestationVersion {
     /// Version 1 (= 0x0100)
     One = 0x0100,
+    /// Version 2 (= 0x0200)
+    Two = 0x0200,
 }
 
 impl TryFrom<u32> for AttestationVersion {
@@ -254,6 +275,8 @@ impl TryFrom<u32> for AttestationVersion {
     fn try_from(value: u32) -> Result<Self> {
         if value == Self::One as u32 {
             Ok(Self::One)
+        } else if value == Self::Two as u32 {
+            Ok(Self::Two)
         } else {
             Err(Error::BinArcbInvVersion(value))
         }
@@ -412,8 +435,8 @@ impl Zeroize for ReqConfData {
 mod test {
     use super::*;
     use crate::get_test_asset;
-    use crate::request::SymKey;
-    use crate::test_utils::get_test_keys;
+    use crate::request::{HybridPKey, SymKey};
+    use crate::test_utils::{get_test_keys, get_test_keys_hybrid};
 
     const ARPK: [u8; 32] = [0x17; 32];
     const NONCE: [u8; 16] = [0xab; 16];
@@ -421,6 +444,8 @@ mod test {
 
     fn mk_arcb() -> Vec<u8> {
         let (cust_key, host_key) = get_test_keys();
+        let host_key = HostKey::V1(host_key);
+
         let ctx = ReqEncrCtx::new_aes_256(
             Some([0x55; 12]),
             Some(cust_key),
@@ -443,7 +468,37 @@ mod test {
         arcb.conf.value_mut().nonce = NONCE;
         arcb.conf.value_mut().meas_key = MEAS;
 
-        arcb.add_hostkey(HostKey::V1(host_key));
+        arcb.add_hostkey(host_key).unwrap();
+        arcb.encrypt(&ctx).unwrap()
+    }
+
+    fn mk_arcb_v2() -> Vec<u8> {
+        let (cust_key, host_key1, host_key2) = get_test_keys_hybrid();
+        let host_key = HostKey::V2(HybridPKey::new(host_key1, host_key2).unwrap());
+
+        let ctx = ReqEncrCtx::new_aes_256(
+            Some([0x55; 12]),
+            Some(cust_key),
+            Some(SymKey::Aes256(ARPK.into())),
+        )
+        .unwrap();
+
+        let mut flags = AttestationFlags::default();
+        flags.set_image_phkh();
+        flags.set_attest_phkh();
+
+        let mut arcb = AttestationRequest::new(
+            AttestationVersion::Two,
+            AttestationMeasAlg::HmacSha512,
+            flags,
+        )
+        .unwrap();
+
+        // manually set confidential data (API does not allow this)
+        arcb.conf.value_mut().nonce = NONCE;
+        arcb.conf.value_mut().meas_key = MEAS;
+
+        arcb.add_hostkey(host_key).unwrap();
         arcb.encrypt(&ctx).unwrap()
     }
 
@@ -455,6 +510,32 @@ mod test {
         assert_eq!(request, exp);
     }
 
+    #[test]
+    fn arcb_v2() {
+        let request = mk_arcb_v2();
+        // Expected bytes for a V2 ARCB: rqvn = 0x0200 (bytes 8-11), rest deterministic.
+        // The first 288 bytes cover header + customer-public-key + one V2 keyslot header.
+        let exp: [u8; 288] = [
+            0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 7, 208, 85, 85, 85, 85, 85, 85, 85, 85, 85,
+            85, 85, 85, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 80, 112, 0, 0, 0,
+            0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 199,
+            93, 52, 249, 22, 82, 219, 69, 123, 11, 32, 156, 70, 164, 145, 164, 78, 226, 177, 110,
+            35, 194, 216, 218, 241, 22, 103, 138, 98, 242, 76, 227, 50, 197, 153, 95, 8, 69, 107,
+            102, 177, 109, 213, 90, 146, 197, 7, 241, 227, 26, 247, 140, 100, 168, 46, 122, 84, 27,
+            21, 19, 80, 21, 242, 2, 134, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 64, 128, 88,
+            167, 241, 165, 195, 80, 151, 83, 58, 2, 169, 56, 121, 231, 222, 103, 186, 40, 11, 206,
+            131, 101, 236, 148, 178, 185, 8, 245, 137, 195, 169, 152, 216, 190, 30, 99, 7, 215, 74,
+            224, 26, 220, 70, 130, 95, 246, 187, 111, 160, 92, 17, 71, 207, 226, 204, 244, 162, 79,
+            61, 131, 61, 218, 112, 255, 94, 191, 53, 220, 196, 47, 37, 93, 227, 234, 101, 1, 174,
+            171, 68, 42, 136, 92, 238, 72, 6, 17, 77, 231, 225, 174, 22, 222, 188, 212, 15, 248,
+            145, 72, 126, 139, 17, 233, 225, 156, 46, 233, 151, 54, 2, 175, 88, 215, 254, 243, 222,
+            37, 81, 50, 110, 18, 76, 252, 12, 210, 146, 66, 23,
+        ];
+
+        // only compare non-randomized part
+        assert_eq!(request[..288], exp[..288]);
+    }
+
     #[test]
     fn auth_bin() {
         let request = mk_arcb();
@@ -464,6 +545,15 @@ mod test {
         assert_eq!(exp, auth_bin.as_bytes());
     }
 
+    #[test]
+    fn auth_bin_v2() {
+        let request = mk_arcb_v2();
+        let auth_bin = AttestationRequest::auth_bin(&request).unwrap();
+        let exp = &request[0x30..0x40];
+
+        assert_eq!(exp, auth_bin.as_bytes());
+    }
+
     #[test]
     fn decrypt_bin() {
         let request = mk_arcb();
@@ -473,6 +563,100 @@ mod test {
         assert_eq!(conf.nonce().as_ref().unwrap().value(), &NONCE);
     }
 
+    #[test]
+    fn decrypt_bin_v2() {
+        let request = mk_arcb_v2();
+        let arpk = SymKey::Aes256(ARPK.into());
+        let (_, conf) = AttestationRequest::decrypt_bin(&request, &arpk).unwrap();
+        assert_eq!(conf.measurement_key(), &MEAS);
+        assert_eq!(conf.nonce().as_ref().unwrap().value(), &NONCE);
+    }
+
+    #[test]
+    fn arcb_v1_version() {
+        // Without any host-keys, version defaults to One
+        let arcb = AttestationRequest::new(
+            AttestationVersion::One,
+            AttestationMeasAlg::HmacSha512,
+            AttestationFlags::default(),
+        )
+        .unwrap();
+
+        assert_eq!(arcb.version(), AttestationVersion::One);
+    }
+
+    #[test]
+    fn arcb_v2_version() {
+        // After adding a V2 host-key, version is Two
+        let mut arcb = AttestationRequest::new(
+            AttestationVersion::Two,
+            AttestationMeasAlg::HmacSha512,
+            AttestationFlags::default(),
+        )
+        .unwrap();
+        let (_, host_key1, host_key2) = get_test_keys_hybrid();
+        arcb.add_hostkey(HostKey::V2(HybridPKey::new(host_key1, host_key2).unwrap()))
+            .unwrap();
+
+        assert_eq!(arcb.version(), AttestationVersion::Two);
+    }
+
+    #[test]
+    fn attestation_version_try_from() {
+        // Test version conversion from u32
+        assert_eq!(
+            AttestationVersion::try_from(0x0100).unwrap(),
+            AttestationVersion::One
+        );
+        assert_eq!(
+            AttestationVersion::try_from(0x0200).unwrap(),
+            AttestationVersion::Two
+        );
+
+        // Invalid version should error
+        assert!(AttestationVersion::try_from(0x0300).is_err());
+    }
+
+    #[test]
+    fn attestation_flags_expected_size() {
+        // Test expected additional data size calculation for V1
+        let mut flags = AttestationFlags::default();
+
+        // Image PHKH flag - should be 32 bytes
+        flags.set_image_phkh();
+        assert_eq!(flags.expected_additional_size(), 32);
+
+        // Add attest PHKH flag - should be 64 bytes (32 + 32)
+        flags.set_attest_phkh();
+        assert_eq!(flags.expected_additional_size(), 64);
+
+        // Add secret store hash - should be 128 bytes (64 + 64)
+        flags.set_secret_store_hash();
+        assert_eq!(flags.expected_additional_size(), 128);
+
+        // Add firmware state - should be 448 bytes (128 + 320)
+        flags.set_firmware_state();
+        assert_eq!(flags.expected_additional_size(), 448);
+    }
+
+    #[test]
+    fn confidential_data_v2() {
+        // Test confidential data extraction (version-independent)
+        let arcb = AttestationRequest::new(
+            AttestationVersion::Two,
+            AttestationMeasAlg::HmacSha512,
+            AttestationFlags::default(),
+        )
+        .unwrap();
+
+        let conf = arcb.confidential_data();
+
+        // Should have measurement key and nonce
+        assert_eq!(conf.measurement_key().len(), 64);
+        assert!(conf.nonce().is_some());
+        assert_eq!(conf.nonce().as_ref().unwrap().value().len(), 16);
+    }
+
     #[test]
     fn decrypt_bin_fail_magic() {
         let arpk = SymKey::Aes256(ARPK.into());
@@ -484,6 +668,17 @@ mod test {
         assert!(matches!(ret, Err(Error::NoArcb)));
     }
 
+    #[test]
+    fn decrypt_bin_fail_magic_v2() {
+        let arpk = SymKey::Aes256(ARPK.into());
+        let mut tamp_arcb = mk_arcb_v2();
+
+        // tamper magic
+        tamp_arcb[0] = 17;
+        let ret = AttestationRequest::decrypt_bin(&tamp_arcb, &arpk);
+        assert!(matches!(ret, Err(Error::NoArcb)));
+    }
+
     #[test]
     fn decrypt_bin_fail_mai() {
         let arpk = SymKey::Aes256(ARPK.into());
@@ -499,6 +694,21 @@ mod test {
         ));
     }
 
+    #[test]
+    fn decrypt_bin_fail_mai_v2() {
+        let arpk = SymKey::Aes256(ARPK.into());
+        let mut tamp_arcb = mk_arcb_v2();
+
+        // tamper MAI
+        tamp_arcb[0x3b] = 17;
+        let ret = AttestationRequest::decrypt_bin(&tamp_arcb, &arpk);
+        println!("{ret:?}");
+        assert!(matches!(
+            ret,
+            Err(Error::PvCore(pv_core::Error::BinArcbInvAlgorithm(17)))
+        ));
+    }
+
     #[test]
     fn decrypt_bin_fail_aad() {
         let arpk = SymKey::Aes256(ARPK.into());
@@ -509,4 +719,15 @@ mod test {
         let ret = AttestationRequest::decrypt_bin(&tamp_arcb, &arpk);
         assert!(matches!(ret, Err(Error::GcmTagMismatch)));
     }
+
+    #[test]
+    fn decrypt_bin_fail_aad_v2() {
+        let arpk = SymKey::Aes256(ARPK.into());
+        let mut tamp_arcb = mk_arcb_v2();
+
+        // tamper AAD
+        tamp_arcb[0x3c] = 17;
+        let ret = AttestationRequest::decrypt_bin(&tamp_arcb, &arpk);
+        assert!(matches!(ret, Err(Error::GcmTagMismatch)));
+    }
 }

rust/pv/src/uvattest/attest.rs

@@ -6,6 +6,7 @@ use std::mem::size_of;
 
 use openssl::hash::MessageDigest;
 use openssl::pkey::{PKeyRef, Private};
+use pv_core::misc::write_file;
 use zerocopy::{BigEndian, IntoBytes, U16, U32};
 
 use super::AttNonce;
@@ -101,6 +102,7 @@ impl AttestationItems {
         }
         items.extend_from_slice(additional);
         assert!(items.len() == size);
+        write_file("additional_data_parsed", &items, "blah").unwrap();
         Self(items.into())
     }
 }

rust/pv/src/uvsecret/asrcb.rs

@@ -6,31 +6,32 @@ use openssl::md::Md;
 use openssl::pkey::{PKey, Private};
 use pv_core::request::RequestVersion;
 use pv_core::secret::AddSecretMagic;
+use pv_core::static_assert;
 use pv_core::uv::SecretId;
 use zerocopy::{Immutable, IntoBytes};
 
-use super::guest_secret::ListableSecretHdr;
+use super::guest_secret::{ListableSecretHdr, SecretAuth};
 use super::user_data::UserData;
 use crate::crypto::{hkdf_rfc_5869, AeadEncryptionResult};
 use crate::misc::Flags;
-use crate::req::{Aad, BinReqValues, HostKey, Keyslot, ReqEncrCtx};
+use crate::req::{Aad, BinReqValues, HostKey, Keyslot, ReqEncrCtx, RequestHdr};
 use crate::request::{BootHdrTags, Confidential, Request};
 use crate::secret::{ExtSecret, GuestSecret};
 use crate::uv::{ConfigUid, UvFlags};
-use crate::{assert_size, Result};
+use crate::{assert_size, Error, Result};
 
 /// Authenticated data w/o user data
 #[repr(C)]
 #[derive(Debug, Clone, Copy, IntoBytes, Immutable)]
-struct ReqAuthData {
+struct ReqAuthDataV1 {
     flags: UvFlags,
     boot_tags: BootHdrTags,
     cuid: ConfigUid,
     reserved90: [u8; 0x100],
 }
-assert_size!(ReqAuthData, 0x1e8);
+assert_size!(ReqAuthDataV1, 0x1e8);
 
-impl ReqAuthData {
+impl ReqAuthDataV1 {
     fn new<F: Into<UvFlags>>(boot_tags: BootHdrTags, flags: F) -> Self {
         Self {
             flags: flags.into(),
@@ -41,6 +42,30 @@ impl ReqAuthData {
     }
 }
 
+/// Authenticated data w/o user data for v2 header: move up secret header 2
+#[repr(C)]
+#[derive(Debug, Clone, IntoBytes, Immutable)]
+struct ReqAuthDataV2 {
+    flags: UvFlags,
+    boot_tags: BootHdrTags,
+    cuid: ConfigUid,
+    secr_auth: [u8; 0x30],
+    reservedd0: [u8; 0x100 - 0x30],
+}
+assert_size!(ReqAuthDataV2, 0x1e8);
+
+impl ReqAuthDataV2 {
+    fn new<F: Into<UvFlags>>(boot_tags: BootHdrTags, flags: F, secr_auth: [u8; 0x30]) -> Self {
+        Self {
+            flags: flags.into(),
+            boot_tags,
+            cuid: [0; 0x10],
+            secr_auth,
+            reservedd0: [0; 0xd0],
+        }
+    }
+}
+
 #[derive(Debug)]
 struct ReqConfData {
     secret: GuestSecret,
@@ -92,6 +117,8 @@ impl From<AddSecretFlags> for UvFlags {
 pub enum AddSecretVersion {
     /// Version 1 (= 0x0100)
     One = 0x0100,
+    /// Version 2 (= 0x0200)
+    Two = 0x0200,
 
     #[cfg(not(doc))]
     #[cfg(any(debug_assertions, test))]
@@ -99,17 +126,182 @@ pub enum AddSecretVersion {
     Inv = 0,
 }
 
+impl TryFrom<u32> for AddSecretVersion {
+    type Error = Error;
+
+    fn try_from(value: u32) -> Result<Self> {
+        if value == Self::One as u32 {
+            Ok(Self::One)
+        } else if value == Self::Two as u32 {
+            Ok(Self::Two)
+        } else {
+            Err(Error::BinAsrcbInvVersion(value))
+        }
+    }
+}
+
 impl From<AddSecretVersion> for RequestVersion {
     fn from(val: AddSecretVersion) -> Self {
         val as Self
     }
 }
 
+impl From<crate::request::SeHdrVersion> for AddSecretVersion {
+    fn from(val: crate::request::SeHdrVersion) -> Self {
+        match val {
+            crate::request::SeHdrVersion::One => AddSecretVersion::One,
+            crate::request::SeHdrVersion::Two => AddSecretVersion::Two,
+        }
+    }
+}
+
+/// Trait for authenticated data in add-secret requests.
+///
+/// This trait provides a common interface for different versions of authenticated data,
+/// allowing flexible addition of new versions in the future.
+trait ReqAuthData: IntoBytes + Immutable {
+    /// Get the configuration UID
+    fn cuid(&self) -> &ConfigUid;
+
+    /// Set the configuration UID
+    fn set_cuid(&mut self, cuid: ConfigUid);
+
+    /// Get the boot tags
+    fn boot_tags(&self) -> &BootHdrTags;
+
+    /// Get the flags
+    fn flags(&self) -> &UvFlags;
+}
+
+impl ReqAuthData for ReqAuthDataV1 {
+    fn cuid(&self) -> &ConfigUid {
+        &self.cuid
+    }
+
+    fn set_cuid(&mut self, cuid: ConfigUid) {
+        self.cuid = cuid;
+    }
+
+    fn boot_tags(&self) -> &BootHdrTags {
+        &self.boot_tags
+    }
+
+    fn flags(&self) -> &UvFlags {
+        &self.flags
+    }
+}
+
+impl ReqAuthData for ReqAuthDataV2 {
+    fn cuid(&self) -> &ConfigUid {
+        &self.cuid
+    }
+
+    fn set_cuid(&mut self, cuid: ConfigUid) {
+        self.cuid = cuid;
+    }
+
+    fn boot_tags(&self) -> &BootHdrTags {
+        &self.boot_tags
+    }
+
+    fn flags(&self) -> &UvFlags {
+        &self.flags
+    }
+}
+
+/// Enum holding version-specific authenticated data
+#[derive(Debug)]
+enum ReqAuthDataVersion {
+    V1(ReqAuthDataV1),
+    V2(ReqAuthDataV2),
+}
+
+impl ReqAuthDataVersion {
+    fn new(
+        version: AddSecretVersion,
+        boot_tags: BootHdrTags,
+        flags: AddSecretFlags,
+        conf_data: &SecretAuth,
+    ) -> Result<Self> {
+        Ok(match version {
+            AddSecretVersion::One => Self::V1(ReqAuthDataV1::new(boot_tags, flags)),
+            AddSecretVersion::Two => Self::V2(ReqAuthDataV2::new(
+                boot_tags,
+                flags,
+                conf_data.get(version).try_into().expect(
+                    "SecretAuth::get() must return exactly 0x30 bytes for AddSecretVersion::Two",
+                ),
+            )),
+            #[cfg(any(debug_assertions, test))]
+            AddSecretVersion::Inv => panic!("Invalid version for production use"),
+        })
+    }
+
+    #[allow(dead_code)]
+    fn cuid(&self) -> &ConfigUid {
+        match self {
+            Self::V1(v) => v.cuid(),
+            Self::V2(v) => v.cuid(),
+        }
+    }
+
+    fn set_cuid(&mut self, cuid: ConfigUid) {
+        match self {
+            Self::V1(v) => v.set_cuid(cuid),
+            Self::V2(v) => v.set_cuid(cuid),
+        }
+    }
+
+    fn boot_tags(&self) -> &BootHdrTags {
+        match self {
+            Self::V1(v) => v.boot_tags(),
+            Self::V2(v) => v.boot_tags(),
+        }
+    }
+
+    #[allow(dead_code)]
+    fn flags(&self) -> &UvFlags {
+        match self {
+            Self::V1(v) => v.flags(),
+            Self::V2(v) => v.flags(),
+        }
+    }
+
+    fn as_bytes(&self) -> &[u8] {
+        match self {
+            Self::V1(v) => v.as_bytes(),
+            Self::V2(v) => v.as_bytes(),
+        }
+    }
+}
+
 /// Add-secret request Control Block
 ///
 /// An ASRCB wraps a secret to securely transport it to the Ultravisor.
 ///
-/// Layout:
+/// Layout V2:
+/// ```none
+/// _______________________________________________________________
+/// |                   generic header (48)
+/// |     ---------------------------------------------------     |
+/// |  Plaintext Add-Secret flags (8)                             |
+/// |  SE header tags: PLD(64) ALD(64) TLD(64) HeaderTag(16)      |
+/// |  Configuration unique ID(16) (Attestation)                  |
+/// |       Optional, defaults to 0                               |
+/// |  Secret header (48)                                         |
+/// |  Reserved(208)                                              |
+/// |  User Data(512) (reserved)                                  |
+/// |  Customer Public Key (160) generated for each request       |
+/// |  N Keyslots(1680 each)                                      |
+/// |     ---------------------------------------------------     |
+/// |  Secret to add (Secret type dependent)(may be 0 bytes)      | Encrypted
+/// |  Extension secret(32) Optional, defaults to 0               | Encrypted
+/// |     ---------------------------------------------------     |
+/// |                   AES GCM Tag (16)                          |
+/// |_____________________________________________________________|
+/// ```
+///
+/// Layout V1:
 /// ```none
 /// _______________________________________________________________
 /// |                   generic header (48)
@@ -133,15 +325,19 @@ impl From<AddSecretVersion> for RequestVersion {
 #[derive(Debug)]
 pub struct AddSecretRequest {
     version: AddSecretVersion,
-    aad: ReqAuthData,
+    aad: ReqAuthDataVersion,
     keyslots: Vec<Keyslot>,
     conf: ReqConfData,
     user_data: UserData,
 }
+static_assert!(AddSecretRequest::USER_DATA_OFFS == 0x218);
+static_assert!(
+    AddSecretRequest::USER_DATA_OFFS == size_of::<RequestHdr>() + size_of::<ReqAuthDataV2>()
+);
 
 impl AddSecretRequest {
     /// Offset of the user-data in the add-secret request in bytes
-    pub(super) const V1_USER_DATA_OFFS: usize = 0x218;
+    pub(super) const USER_DATA_OFFS: usize = size_of::<RequestHdr>() + size_of::<ReqAuthDataV1>();
 
     /// Create a new add-secret request.
     ///
@@ -152,22 +348,23 @@ impl AddSecretRequest {
         secret: GuestSecret,
         boot_tags: BootHdrTags,
         flags: AddSecretFlags,
-    ) -> Self {
-        Self {
-            conf: ReqConfData {
-                extension_secret: Confidential::new([0; 32]),
-                secret,
-            },
-            aad: ReqAuthData::new(boot_tags, flags),
+    ) -> Result<Self> {
+        let conf = ReqConfData {
+            extension_secret: Confidential::new([0; 32]),
+            secret,
+        };
+        Ok(Self {
+            aad: ReqAuthDataVersion::new(version, boot_tags, flags, &conf.secret.auth())?,
+            conf,
             keyslots: vec![],
             version,
             user_data: UserData::Null,
-        }
+        })
     }
 
     /// Sets the Configuration Unique Id of this [`AddSecretRequest`].
     pub fn set_cuid(&mut self, cuid: ConfigUid) {
-        self.aad.cuid = cuid;
+        self.aad.set_cuid(cuid);
     }
 
     /// Sets the extension secret of this [`AddSecretRequest`].
@@ -182,7 +379,7 @@ impl AddSecretRequest {
             ExtSecret::Derived(cck) => hkdf_rfc_5869(
                 Md::sha512(),
                 cck.value(),
-                self.aad.boot_tags.tag(),
+                self.aad.boot_tags().tag(),
                 DER_EXT_SECRET_INFO,
             )?
             .into(),
@@ -221,7 +418,6 @@ impl AddSecretRequest {
         let cust_pub_key = ctx.key_coords()?;
         let secr_auth = self.conf.secret.auth();
         let user_data = self.user_data.data();
-
         let mut aad: Vec<Aad> = Vec::with_capacity(5 + self.keyslots.len());
         aad.push(Aad::Plain(self.aad.as_bytes()));
         if let Some(data) = user_data.0 {
@@ -232,7 +428,13 @@ impl AddSecretRequest {
         }
         aad.push(Aad::Plain(cust_pub_key.as_ref()));
         self.keyslots.iter().for_each(|k| aad.push(Aad::Ks(k)));
-        aad.push(Aad::Plain(secr_auth.get()));
+        // write secret header (1) only for v1
+        match self.version {
+            AddSecretVersion::One => aad.push(Aad::Plain(secr_auth.get(AddSecretVersion::One))),
+            AddSecretVersion::Two => {}
+            #[cfg(any(debug_assertions, test))]
+            _ => return Err(Error::UnsupportedAddSecretVersion(self.version as u32)),
+        }
 
         ctx.build_aad(self.version.into(), &aad, conf_len, self.user_data.magic())
     }
@@ -273,7 +475,7 @@ impl AddSecretRequest {
         // add signature to authenticated data starting with USER_DATA_OFFS
         self.user_data.sign(
             &mut buf[aad_range.start..encr_range.end],
-            Self::V1_USER_DATA_OFFS,
+            Self::USER_DATA_OFFS,
         )?;
 
         // encrypt again with signed data
@@ -309,7 +511,101 @@ impl Request for AddSecretRequest {
         }
     }
 
-    fn add_hostkey(&mut self, hostkey: HostKey) {
-        self.keyslots.push(Keyslot::new(hostkey))
+    fn add_hostkey(&mut self, hostkey: HostKey) -> Result<()> {
+        match self.version {
+            AddSecretVersion::One if !hostkey.is_hybrid() => Ok(()),
+            AddSecretVersion::Two if hostkey.is_hybrid() => Ok(()),
+            AddSecretVersion::One => Err(Error::InvalidHkd(
+                "Add classical hostkey to a v1 attestation request".to_string(),
+            )),
+            AddSecretVersion::Two => Err(Error::InvalidHkd(
+                "Add hybrid key to a v2 attetstation request".to_string(),
+            )),
+            #[cfg(any(debug_assertions, test))]
+            AddSecretVersion::Inv => panic!("Invalid version for production use"),
+        }?;
+        self.keyslots.push(Keyslot::new(hostkey));
+        Ok(())
+    }
+}
+
+#[cfg(test)]
+mod test {
+    use super::*;
+    use crate::request::SeHdrVersion;
+
+    #[test]
+    fn add_secret_version_v1() {
+        // Test V1 version constant
+        assert_eq!(AddSecretVersion::One as u32, 0x0100);
+    }
+
+    #[test]
+    fn add_secret_version_v2() {
+        // Test V2 version constant
+        assert_eq!(AddSecretVersion::Two as u32, 0x0200);
+    }
+
+    #[test]
+    fn add_secret_version_conversion_v1() {
+        // Test conversion from SeHdrVersion to AddSecretVersion for V1
+        let v1: AddSecretVersion = SeHdrVersion::One.into();
+        assert_eq!(v1, AddSecretVersion::One);
+    }
+
+    #[test]
+    fn add_secret_version_conversion_v2() {
+        // Test conversion from SeHdrVersion to AddSecretVersion for V2
+        let v2: AddSecretVersion = SeHdrVersion::Two.into();
+        assert_eq!(v2, AddSecretVersion::Two);
+    }
+
+    #[test]
+    fn add_secret_version_into_request_version() {
+        // Test conversion from AddSecretVersion to RequestVersion
+        let v1: RequestVersion = AddSecretVersion::One.into();
+        assert_eq!(v1, 0x0100);
+
+        let v2: RequestVersion = AddSecretVersion::Two.into();
+        assert_eq!(v2, 0x0200);
+    }
+
+    #[test]
+    fn add_secret_flags_default() {
+        // Test default flags have no bits set
+        let flags = AddSecretFlags::default();
+        let uv_flags: UvFlags = flags.into();
+
+        // Default should have all bits cleared
+        assert_eq!(uv_flags.as_bytes(), &[0u8; 8]);
+    }
+
+    #[test]
+    fn add_secret_flags_disable_dump() {
+        // Test disable dump flag sets bit 0
+        let mut flags = AddSecretFlags::default();
+        flags.set_disable_dump();
+
+        let uv_flags: UvFlags = flags.into();
+
+        // Bit 0 should be set, so bytes should not be all zeros
+        assert_ne!(uv_flags.as_bytes(), &[0u8; 8]);
+    }
+
+    #[test]
+    fn req_auth_data_size() {
+        // Test ReqAuthData size constant
+        use std::mem::size_of;
+
+        assert_eq!(size_of::<ReqAuthDataV1>(), 0x1e8);
+    }
+
+    #[test]
+    #[cfg(any(debug_assertions, test))]
+    fn add_secret_version_inv_for_testing() {
+        // Test that invalid version exists for testing
+        assert_eq!(AddSecretVersion::Inv as u32, 0);
+        assert_ne!(AddSecretVersion::Inv, AddSecretVersion::One);
+        assert_ne!(AddSecretVersion::Inv, AddSecretVersion::Two);
     }
 }

rust/pv/src/uvsecret/guest_secret.rs

@@ -16,6 +16,7 @@ use super::asrcb::AddSecretRequest;
 use crate::crypto::{hash, random_array, SymKeyType};
 use crate::request::openssl::{NID_ED25519, NID_ED448};
 use crate::request::Confidential;
+use crate::secret::AddSecretVersion;
 use crate::uv::{
     AesSizes, AesXtsSizes, EcCurves, HmacShaSizes, ListableSecretType, RetrievableSecret,
     RetrieveCmd, SecretId,
@@ -388,12 +389,18 @@ pub(crate) enum SecretAuth {
 }
 
 impl SecretAuth {
-    const NULL_HDR: NullSecretHdr = NullSecretHdr::new();
+    const NULL_HDR_V1: NullSecretHdrV1 = NullSecretHdrV1::new();
+    const NULL_HDR_V2: NullSecretHdrV2 = NullSecretHdrV2::new();
     const UPDATE_CCK_HDR: UpdateCckHdr = UpdateCckHdr::new();
 
-    pub fn get(&self) -> &[u8] {
+    pub fn get(&self, version: AddSecretVersion) -> &[u8] {
         match self {
-            Self::Null => Self::NULL_HDR.as_bytes(),
+            Self::Null => match version {
+                AddSecretVersion::One => Self::NULL_HDR_V1.as_bytes(),
+                AddSecretVersion::Two => Self::NULL_HDR_V2.as_bytes(),
+                #[cfg(any(debug_assertions, test))]
+                _ => panic!("Invalid AddSecretVersion"),
+            },
             Self::Listable(h) => h.as_bytes(),
             Self::UpdateCck => Self::UPDATE_CCK_HDR.as_bytes(),
         }
@@ -402,15 +409,15 @@ impl SecretAuth {
 
 #[repr(C)]
 #[derive(Debug, IntoBytes, FromBytes, Immutable, KnownLayout)]
-struct NullSecretHdr {
+struct NullSecretHdrV1 {
     res0: u16,
     kind: U16<BigEndian>,
     secret_len: U32<BigEndian>,
     res8: u64,
 }
-assert_size!(NullSecretHdr, 0x10);
+assert_size!(NullSecretHdrV1, 0x10);
 
-impl NullSecretHdr {
+impl NullSecretHdrV1 {
     const fn new() -> Self {
         Self {
             res0: 0,
@@ -421,6 +428,29 @@ impl NullSecretHdr {
     }
 }
 
+#[repr(C)]
+#[derive(Debug, IntoBytes, FromBytes, Immutable, KnownLayout)]
+struct NullSecretHdrV2 {
+    res0: u16,
+    kind: U16<BigEndian>,
+    secret_len: U32<BigEndian>,
+    res8: u64,
+    reserved1: [u8; 32],
+}
+assert_size!(NullSecretHdrV2, 0x30);
+
+impl NullSecretHdrV2 {
+    const fn new() -> Self {
+        Self {
+            res0: 0,
+            kind: U16::new(ListableSecretType::NULL),
+            secret_len: U32::ZERO,
+            res8: 0,
+            reserved1: [0; 32],
+        }
+    }
+}
+
 #[repr(C)]
 #[derive(Debug, IntoBytes, FromBytes, Immutable, KnownLayout)]
 pub(crate) struct ListableSecretHdr {
@@ -701,7 +731,7 @@ mod test {
         let gs_bytes = gs.auth();
         let exp = vec![0u8, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0];
 
-        assert_eq!(exp, gs_bytes.get());
+        assert_eq!(exp, gs_bytes.get(AddSecretVersion::One));
         assert_eq!(&Vec::<u8>::new(), gs.confidential())
     }
 
@@ -716,7 +746,7 @@ mod test {
         let mut exp = vec![0u8, 0, 0, 2, 0, 0, 0, 0x20, 0, 0, 0, 0, 0, 0, 0, 0];
         exp.extend([1; 32]);
 
-        assert_eq!(exp, gs_bytes_auth.get());
+        assert_eq!(exp, gs_bytes_auth.get(AddSecretVersion::One));
         assert_eq!(&[2; 32], gs.confidential());
     }
 
@@ -729,7 +759,7 @@ mod test {
             secret: vec![2; 32].into(),
         };
         let auth = gs.auth();
-        let gs_bytes_auth = auth.get();
+        let gs_bytes_auth = auth.get(AddSecretVersion::One);
         let mut exp = vec![0u8, 0, 0, 3, 0, 0, 0, 0x20, 0, 0, 0, 0, 0, 0, 0, 0];
         exp.extend([1; 32]);
 
@@ -746,7 +776,7 @@ mod test {
         let mut exp = vec![0u8, 0, 0, 0x16, 0, 0, 0, 0x20];
         exp.extend([0; 40]);
 
-        assert_eq!(exp, gs_bytes_auth.get());
+        assert_eq!(exp, gs_bytes_auth.get(AddSecretVersion::One));
         assert_eq!(&[2; 32], gs.confidential());
     }
 }

rust/pv/src/uvsecret/retr_secret.rs

@@ -133,6 +133,7 @@ impl RetrievedSecret {
             RetrievedSecret::ProtectedKey(p) => p.into_bytes(),
         }
     }
+
     /// Get the data in PEM format.
     ///
     /// # Errors

rust/pv/src/uvsecret/user_data.rs

@@ -10,7 +10,7 @@ use crate::crypto::{sign_msg, verify_signature};
 use crate::req::BinReqValues;
 use crate::request::openssl::pkey::{HasParams, HasPublic, Id, PKey, PKeyRef, Private, Public};
 use crate::request::RequestMagic;
-use crate::secret::{AddSecretMagic, AddSecretRequest, AddSecretVersion, UserDataType};
+use crate::secret::{AddSecretMagic, AddSecretRequest, UserDataType};
 use crate::{assert_size, Error, Result};
 
 /// User data.
@@ -261,21 +261,19 @@ pub fn verify_asrcb_and_get_user_data(
     // check that the provided buffer contains an Add Secret request
     let magic = AddSecretMagic::try_from_bytes(&asrcb)?;
     let req = BinReqValues::get(&asrcb)?;
-    if req.version() != AddSecretVersion::One as u32 {
-        return Err(Error::BinAsrcbInvVersion);
-    }
 
     // preventing the two lines after the truncate from panicking
     let req_len = req.len();
     if asrcb.len() < req_len
-        || req_len < AddSecretRequest::V1_USER_DATA_OFFS + UserData::USER_DATA_SIZE
+        || req_len < AddSecretRequest::USER_DATA_OFFS + UserData::USER_DATA_SIZE
     {
         return Err(pv_core::Error::NoAsrcb.into());
     }
+
     // forget the tag (and all additional data that might be behind the tag)
     asrcb.truncate(req_len - BinReqValues::TAG_LEN);
     // get a mutable refrenence on the 512 bytes of user data
-    let (_, user_data) = asrcb.split_at_mut(AddSecretRequest::V1_USER_DATA_OFFS);
+    let (_, user_data) = asrcb.split_at_mut(AddSecretRequest::USER_DATA_OFFS);
     let user_data = &mut user_data[..UserData::USER_DATA_SIZE];
 
     // depending on the user_data_type do:

rust/pv/tests/add_secret_request.rs

@@ -6,13 +6,13 @@
 use openssl::ec::{EcGroup, EcKey};
 use openssl::nid::Nid;
 use openssl::pkey::Private;
-use s390_pv::request::openssl::pkey::{PKey, Public};
-use s390_pv::request::{BootHdrTags, HostKey, ReqEncrCtx, Request, SymKey};
+use s390_pv::request::openssl::pkey::PKey;
+use s390_pv::request::{BootHdrTags, HostKey, HybridPKey, ReqEncrCtx, Request, SymKey};
 use s390_pv::secret::{
     verify_asrcb_and_get_user_data, AddSecretFlags, AddSecretRequest, AddSecretVersion, ExtSecret,
     GuestSecret,
 };
-use s390_pv::test_utils::get_test_keys;
+use s390_pv::test_utils::{get_test_keys, get_test_keys_hybrid, DeterministicTestRandGuard};
 use s390_pv::uv::ConfigUid;
 use s390_pv::{get_test_asset, Result};
 
@@ -29,8 +29,13 @@ fn create_asrcb(
     hkd: HostKey,
     ctx: &ReqEncrCtx,
 ) -> Result<Vec<u8>> {
-    let mut asrcb = AddSecretRequest::new(AddSecretVersion::One, guest_secret, TAGS, flags);
+    let asrcb = match hkd {
+        HostKey::V1(_) => AddSecretRequest::new(AddSecretVersion::One, guest_secret, TAGS, flags),
+        HostKey::V2(_) => AddSecretRequest::new(AddSecretVersion::Two, guest_secret, TAGS, flags),
+        _ => unreachable!("Unknown HostKey version"),
+    };
 
+    let mut asrcb = asrcb?;
     if let Some(s) = ext_secret {
         asrcb.set_ext_secret(s)?
     };
@@ -38,12 +43,25 @@ fn create_asrcb(
         asrcb.set_cuid(c);
     };
 
-    asrcb.add_hostkey(hkd);
+    asrcb.add_hostkey(hkd)?;
     asrcb.encrypt(ctx)
 }
 
-fn get_crypto() -> (PKey<Public>, ReqEncrCtx) {
+fn get_crypto() -> (HostKey, ReqEncrCtx) {
     let (cust_key, host_key) = get_test_keys();
+    let host_key = HostKey::V1(host_key);
+    let ctx = ReqEncrCtx::new_aes_256(
+        Some([0x55; 12]),
+        Some(cust_key),
+        Some(SymKey::Aes256([0x17; 32].into())),
+    )
+    .unwrap();
+    (host_key, ctx)
+}
+
+fn get_crypto_v2() -> (HostKey, ReqEncrCtx) {
+    let (cust_key, host_key1, host_key2) = get_test_keys_hybrid();
+    let host_key = HostKey::V2(HybridPKey::new(host_key1, host_key2).unwrap());
     let ctx = ReqEncrCtx::new_aes_256(
         Some([0x55; 12]),
         Some(cust_key),
@@ -67,14 +85,25 @@ where
         true => Some(CUID),
         false => None,
     };
-    create_asrcb(
-        guest_secret,
-        ext_secret.into(),
-        flags,
-        cuid,
-        HostKey::V1(host_key),
-        &ctx,
-    )
+    create_asrcb(guest_secret, ext_secret.into(), flags, cuid, host_key, &ctx)
+}
+
+fn gen_asrcb_v2<E>(
+    guest_secret: GuestSecret,
+    ext_secret: E,
+    flags: AddSecretFlags,
+    cuid: bool,
+) -> Result<Vec<u8>>
+where
+    E: Into<Option<ExtSecret>>,
+{
+    let _guard = DeterministicTestRandGuard::install(&[0x42; 4096], &[0x11; 32]).unwrap();
+    let (host_key, ctx) = get_crypto_v2();
+    let cuid = match cuid {
+        true => Some(CUID),
+        false => None,
+    };
+    create_asrcb(guest_secret, ext_secret.into(), flags, cuid, host_key, &ctx)
 }
 
 fn association() -> GuestSecret {
@@ -96,9 +125,21 @@ fn no_flag() -> AddSecretFlags {
 fn create_signed_asrcb(skey: PKey<Private>, user_data: Vec<u8>) -> Vec<u8> {
     let (host_key, ctx) = get_crypto();
     let mut asrcb =
-        AddSecretRequest::new(AddSecretVersion::One, GuestSecret::Null, TAGS, no_flag());
+        AddSecretRequest::new(AddSecretVersion::One, GuestSecret::Null, TAGS, no_flag())
+            .expect("AddSecretRequest::new failed");
 
-    asrcb.add_hostkey(HostKey::V1(host_key));
+    asrcb.add_hostkey(host_key).unwrap();
+    asrcb.set_user_data(user_data, Some(skey)).unwrap();
+    asrcb.encrypt(&ctx).unwrap()
+}
+
+fn create_signed_asrcb_v2(skey: PKey<Private>, user_data: Vec<u8>) -> Vec<u8> {
+    let (host_key, ctx) = get_crypto_v2();
+    let mut asrcb =
+        AddSecretRequest::new(AddSecretVersion::Two, GuestSecret::Null, TAGS, no_flag())
+            .expect("AddSecretRequest::new failed");
+
+    asrcb.add_hostkey(host_key).unwrap();
     asrcb.set_user_data(user_data, Some(skey)).unwrap();
     asrcb.encrypt(&ctx).unwrap()
 }
@@ -108,9 +149,10 @@ fn null_none_default_ncuid_one_user_unsgn() {
     let user_data_orig = vec![0x56; 0x183];
     let (host_key, ctx) = get_crypto();
     let mut asrcb =
-        AddSecretRequest::new(AddSecretVersion::One, GuestSecret::Null, TAGS, no_flag());
+        AddSecretRequest::new(AddSecretVersion::One, GuestSecret::Null, TAGS, no_flag())
+            .expect("AddSecretRequest::new failed");
 
-    asrcb.add_hostkey(HostKey::V1(host_key));
+    asrcb.add_hostkey(host_key).unwrap();
     asrcb.set_user_data(user_data_orig.clone(), None).unwrap();
     let asrcb = asrcb.encrypt(&ctx).unwrap();
 
@@ -121,6 +163,7 @@ fn null_none_default_ncuid_one_user_unsgn() {
         &user_data.as_ref().unwrap()[..user_data_orig.len()]
     );
 }
+
 #[test]
 fn null_none_default_ncuid_one_user_ec() {
     let (usr_sgn_key, _) = get_test_keys();
@@ -242,8 +285,11 @@ fn null_none_default_ncuid_one() {
 fn null_none_default_cuid_seven() {
     let (hkd, ctx) = get_crypto();
     let mut asrcb =
-        AddSecretRequest::new(AddSecretVersion::One, GuestSecret::Null, TAGS, no_flag());
-    (0..7).for_each(|_| asrcb.add_hostkey(HostKey::V1(hkd.clone())));
+        AddSecretRequest::new(AddSecretVersion::One, GuestSecret::Null, TAGS, no_flag())
+            .expect("AddSecretRequest::new failed");
+    for _ in 0..7 {
+        asrcb.add_hostkey(hkd.clone()).unwrap()
+    }
     asrcb.set_cuid(CUID);
     let asrcb = asrcb.encrypt(&ctx).unwrap();
 
@@ -259,3 +305,164 @@ fn verify_no_user_data() {
         Ok(None)
     ))
 }
+
+// V2 tests (using hybrid keys)
+
+#[test]
+fn null_none_default_ncuid_two_user_unsgn() {
+    let _guard = DeterministicTestRandGuard::install(&[0x42; 4096], &[0x11; 32]).unwrap();
+    let user_data_orig = vec![0x56; 0x183];
+    let (host_key, ctx) = get_crypto_v2();
+    let mut asrcb =
+        AddSecretRequest::new(AddSecretVersion::Two, GuestSecret::Null, TAGS, no_flag())
+            .expect("AddSecretRequest::new failed");
+
+    asrcb.add_hostkey(host_key).unwrap();
+    asrcb.set_user_data(user_data_orig.clone(), None).unwrap();
+    let asrcb = asrcb.encrypt(&ctx).unwrap();
+
+    let user_data = verify_asrcb_and_get_user_data(asrcb, None).unwrap();
+
+    assert_eq!(
+        user_data_orig.as_slice(),
+        &user_data.as_ref().unwrap()[..user_data_orig.len()]
+    );
+}
+
+#[test]
+fn null_none_default_ncuid_two_user_ec() {
+    let _guard = DeterministicTestRandGuard::install(&[0x42; 4096], &[0x11; 32]).unwrap();
+    let (usr_sgn_key, _) = get_test_keys();
+
+    let usr_vrfy_key = usr_sgn_key.ec_key().unwrap();
+    let usr_vrfy_key = usr_vrfy_key.public_key();
+    let usr_vrfy_key = PKey::from_ec_key(
+        EcKey::from_public_key(
+            &EcGroup::from_curve_name(Nid::SECP521R1).unwrap(),
+            usr_vrfy_key,
+        )
+        .unwrap(),
+    )
+    .unwrap();
+
+    let user_data_orig = vec![0x56; 0x100];
+    let asrcb = create_signed_asrcb_v2(usr_sgn_key, user_data_orig.clone());
+
+    let user_data = verify_asrcb_and_get_user_data(asrcb, Some(usr_vrfy_key)).unwrap();
+    assert_eq!(
+        user_data_orig.as_slice(),
+        &user_data.as_ref().unwrap()[..user_data_orig.len()]
+    );
+}
+
+#[test]
+fn null_none_default_ncuid_two_user_rsa2048() {
+    let _guard = DeterministicTestRandGuard::install(&[0x42; 4096], &[0x11; 32]).unwrap();
+    let usr_sgn_key = get_test_asset!("keys/rsa2048key.pem");
+    let usr_sgn_key = PKey::private_key_from_pem(usr_sgn_key).unwrap();
+    let user_data_orig = vec![0x56; 0x100];
+    let asrcb = create_signed_asrcb_v2(usr_sgn_key, user_data_orig.clone());
+
+    let usr_vrfy_key = get_test_asset!("keys/rsa2048key.pub.pem");
+    let usr_vrfy_key = PKey::public_key_from_pem(usr_vrfy_key).unwrap();
+
+    let user_data = verify_asrcb_and_get_user_data(asrcb, Some(usr_vrfy_key)).unwrap();
+    assert_eq!(
+        user_data_orig.as_slice(),
+        &user_data.as_ref().unwrap()[..user_data_orig.len()]
+    );
+}
+
+#[test]
+fn null_none_default_ncuid_two_user_rsa3072() {
+    let _guard = DeterministicTestRandGuard::install(&[0x42; 4096], &[0x11; 32]).unwrap();
+    let usr_sgn_key = get_test_asset!("keys/rsa3072key.pem");
+    let usr_sgn_key = PKey::private_key_from_pem(usr_sgn_key).unwrap();
+    let user_data_orig = vec![0x56; 0x80];
+    let asrcb = create_signed_asrcb_v2(usr_sgn_key, user_data_orig.clone());
+
+    let usr_vrfy_key = get_test_asset!("keys/rsa3072key.pub.pem");
+    let usr_vrfy_key = PKey::public_key_from_pem(usr_vrfy_key).unwrap();
+
+    let user_data = verify_asrcb_and_get_user_data(asrcb, Some(usr_vrfy_key)).unwrap();
+    assert_eq!(
+        user_data_orig.as_slice(),
+        &user_data.as_ref().unwrap()[..user_data_orig.len()]
+    );
+}
+
+#[test]
+fn null_none_default_cuid_two() {
+    let _guard = DeterministicTestRandGuard::install(&[0x42; 4096], &[0x11; 32]).unwrap();
+    let asrcb = gen_asrcb_v2(GuestSecret::Null, None, no_flag(), true).unwrap();
+    let exp = get_test_asset!("exp/asrcb/null_none_default_cuid_two");
+    assert_eq!(asrcb, exp);
+}
+
+#[test]
+fn assoc_none_default_cuid_two() {
+    let asrcb = gen_asrcb_v2(association(), None, no_flag(), true).unwrap();
+    let exp = get_test_asset!("exp/asrcb/assoc_none_default_cuid_two");
+    assert_eq!(asrcb, exp);
+}
+
+#[test]
+fn null_simple_default_cuid_two() {
+    let asrcb = gen_asrcb_v2(GuestSecret::Null, ext_simple(), no_flag(), true).unwrap();
+    let exp = get_test_asset!("exp/asrcb/null_simple_default_cuid_two");
+    assert_eq!(asrcb, exp);
+}
+
+#[test]
+fn assoc_simple_default_cuid_two() {
+    let asrcb = gen_asrcb_v2(association(), ext_simple(), no_flag(), true).unwrap();
+    let exp = get_test_asset!("exp/asrcb/assoc_simple_default_cuid_two");
+    assert_eq!(asrcb, exp);
+}
+
+#[test]
+fn null_derived_default_cuid_two() {
+    let asrcb = gen_asrcb_v2(GuestSecret::Null, ext_derived(), no_flag(), true).unwrap();
+    let exp = get_test_asset!("exp/asrcb/null_derived_default_cuid_two");
+    assert_eq!(asrcb, exp);
+}
+
+#[test]
+fn assoc_derived_default_cuid_two() {
+    let asrcb = gen_asrcb_v2(association(), ext_derived(), no_flag(), true).unwrap();
+    let exp = get_test_asset!("exp/asrcb/assoc_derived_default_cuid_two");
+    assert_eq!(asrcb, exp);
+}
+
+#[test]
+fn null_none_dump_cuid_two() {
+    let mut flags = no_flag();
+    flags.set_disable_dump();
+    let asrcb = gen_asrcb_v2(GuestSecret::Null, None, flags, true).unwrap();
+    let exp = get_test_asset!("exp/asrcb/null_none_dump_cuid_two");
+    assert_eq!(asrcb, exp);
+}
+
+#[test]
+fn null_none_default_ncuid_two() {
+    let asrcb = gen_asrcb_v2(GuestSecret::Null, None, no_flag(), false).unwrap();
+    let exp = get_test_asset!("exp/asrcb/null_none_default_ncuid_two");
+    assert_eq!(asrcb, exp);
+}
+
+#[test]
+fn null_none_default_cuid_seven_two() {
+    let _guard = DeterministicTestRandGuard::install(&[0x42; 4096], &[0x11; 32]).unwrap();
+    let (hkd, ctx) = get_crypto_v2();
+    let mut asrcb =
+        AddSecretRequest::new(AddSecretVersion::Two, GuestSecret::Null, TAGS, no_flag())
+            .expect("AddSecretRequest::new failed");
+    for _ in 0..7 {
+        asrcb.add_hostkey(hkd.clone()).unwrap()
+    }
+    asrcb.set_cuid(CUID);
+    let asrcb = asrcb.encrypt(&ctx).unwrap();
+
+    let exp = get_test_asset!("exp/asrcb/null_none_default_cuid_seven_two");
+    assert_eq!(asrcb, exp);
+}

rust/pv/tests/assets/keys/create_hybrid_hkd.sh

@@ -0,0 +1,76 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+OUT_PREFIX=${1:-host}
+SUBJ="/C=US/O=IBM/OU=Testing/CN=Qsafe HK"
+
+if [ -f "${OUT_PREFIX}.hybrid.crt" ]; then
+	echo "[*] Nothing to do... ${OUT_PREFIX}.hybrid.crt already exists"
+	exit 0
+fi
+
+echo "[*] Generating ML-KEM-1024 keypair..."
+
+if openssl list -kem-algorithms 2>/dev/null | grep -qi ML-KEM-1024; then
+	echo "    -> OpenSSL OQS provider detected"
+
+	if ! [ -f "${OUT_PREFIX}.mlkem.key" ]; then
+		echo "[*] Generate ML-KEM key (target public key)"
+		openssl genpkey -algorithm MLKEM1024 -out "${OUT_PREFIX}.mlkem.key"
+		openssl pkey -in "${OUT_PREFIX}.mlkem.key" -pubout -out "${OUT_PREFIX}.mlkem.pub.pem"
+	fi
+
+	if ! [ -f "issuer.key" ] || ! [ -f "issuer.crt" ]; then
+		echo "[*] Generate RSA issuer (signing key)"
+		openssl req -x509 -newkey rsa:4096 -nodes \
+			-keyout issuer.key \
+			-out issuer.crt \
+			-days 365 \
+			-subj "${SUBJ}"
+	fi
+
+	if ! [ -f "${OUT_PREFIX}.mlkem.crt" ]; then
+		echo "[*] Create certificate with injected ML-KEM public key"
+
+		openssl req -new -newkey rsa:2048 -nodes \
+			-keyout tmp.key \
+			-subj "${SUBJ}" |
+			openssl x509 -req \
+				-CA issuer.crt \
+				-CAkey issuer.key \
+				-CAcreateserial \
+				-days 365 \
+				-set_serial 0x66A376DBB5502C74C6 \
+				-force_pubkey "${OUT_PREFIX}.mlkem.pub.pem" \
+				-extfile <(
+					cat <<EOF
+basicConstraints=CA:FALSE
+keyUsage=critical,keyAgreement
+subjectKeyIdentifier=hash
+authorityKeyIdentifier=keyid
+crlDistributionPoints=URI:http://issuer.crl
+EOF
+				) \
+				-out "${OUT_PREFIX}.mlkem.crt"
+	fi
+else
+	echo "    -> No PQ support, using placeholder"
+	exit 1
+fi
+
+echo "[*] Building hybrid PEM: ${OUT_PREFIX}.hybrid.pem"
+
+{
+	echo "-----BEGIN CERTIFICATE-----"
+
+	sed '/-----/d' "${OUT_PREFIX}.pem.crt"
+
+	echo "-----END CERTIFICATE-----"
+	echo "-----BEGIN CERTIFICATE-----"
+	sed '/-----/d' "${OUT_PREFIX}.mlkem.crt"
+
+	echo "-----END CERTIFICATE-----"
+} >"${OUT_PREFIX}.hybrid.crt"
+
+echo "[✓] Done"
+echo "    -> ${OUT_PREFIX}.hybrid.crt"

rust/pv/tests/assets/keys/host.ec.crt

@@ -0,0 +1,15 @@
+-----BEGIN CERTIFICATE-----
+MIICXDCCAb6gAwIBAgIUcOg3S9/SHLdnpu6iaI7QI2cszsgwCgYIKoZIzj0EAwIw
+QDELMAkGA1UEBhMCVVMxDDAKBgNVBAoMA0lCTTEQMA4GA1UECwwHVGVzdGluZzER
+MA8GA1UEAwwIUXNhZmUgSEswHhcNMjYwNjI1MTM1MTE4WhcNMzYwNjIyMTM1MTE4
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+BYvC/ZVd2nKqZhx5WGKNAAq/NObSdvH6uNfjZY27pS56fB2abxa5UzlH/KkYAU+J
+m1sFjZhOqD1Bvb/mizhz1WqdHucGSQYO55WDL+KH06Goo1MwUTAdBgNVHQ4EFgQU
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+FfucD8IwDwYDVR0TAQH/BAUwAwEB/zAKBggqhkjOPQQDAgOBiwAwgYcCQTTEnxAy
+8/inrBEMtAINb9yA+LAXk5mDQIa7WXOiKRiJKLqHyrjPXqMIAtNgWwSmLggHiIYE
+R4MiacrfbVdEOda3AkIBLv0XRN8zEaMLDlis6EdhgF+/AXFtsYxsjafZpoqnfx2X
+YfbIgFpLUTcYWwoPi5uopbiAwv3AQy3x5CEFwG3e5PY=
+-----END CERTIFICATE-----

rust/pv/tests/assets/keys/host.ec.key

@@ -0,0 +1,8 @@
+-----BEGIN PRIVATE KEY-----
+MIHuAgEAMBAGByqGSM49AgEGBSuBBAAjBIHWMIHTAgEBBEIAKog0FWiwlXuAS1jK
+dNsahw9KZ+r4zvZrp1LmDSOQNOfkauXHH1EmBEnUkYccsi7PibYkz80sxbtk+NVW
+Kk6pGk2hgYkDgYYABAHwdB2ksf7RAzpwNLb/7UhXNr9bdGGqwvC/UHFdG1PqOBpO
+jga4kItBm1J2uAp3QD1q6wWLwv2VXdpyqmYceVhijQAKvzTm0nbx+rjX42WNu6Uu
+enwdmm8WuVM5R/ypGAFPiZtbBY2YTqg9Qb2/5os4c9VqnR7nBkkGDueVgy/ih9Oh
+qA==
+-----END PRIVATE KEY-----

rust/pv/tests/assets/keys/host.hybrid.crt

@@ -0,0 +1,84 @@
+-----BEGIN CERTIFICATE-----
+MIIFFDCCAvygAwIBAgIUO+SNGBgRvkmR/lKiZhiN4l4zS70wDQYJKoZIhvcNAQEN
+BQAwgcwxCzAJBgNVBAYTAlVTMTQwMgYDVQQKDCtJbnRlcm5hdGlvbmFsIEJ1c2lu
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+bmVzcyBNYWNoaW5lcyBDb3Jwb3JhdGlvbjE0MDIGA1UEAwwrSW50ZXJuYXRpb25h
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+XpKNUy1D78o=
+-----END CERTIFICATE-----
+-----BEGIN CERTIFICATE-----
+MIIJlTCCB32gAwIBAgIJZqN227VQLHTGMA0GCSqGSIb3DQEBCwUAMEAxCzAJBgNV
+BAYTAlVTMQwwCgYDVQQKDANJQk0xEDAOBgNVBAsMB1Rlc3RpbmcxETAPBgNVBAMM
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+-----END CERTIFICATE-----

rust/pv/tests/assets/keys/host.mlkem.crt

@@ -0,0 +1,54 @@
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----

rust/pv/tests/assets/keys/host.mlkem.key

@@ -0,0 +1,71 @@
+-----BEGIN PRIVATE KEY-----
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++JA=
+-----END PRIVATE KEY-----

rust/pv/tests/assets/keys/host.mlkem.pub.pem

@@ -0,0 +1,36 @@
+-----BEGIN PUBLIC KEY-----
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+rD7TikUKqUX7NsOSP8DicuBcQx5ieFo4NVQQOkM8aRRye5+IScnTvaf+nZegR1iu
+pJafxe8R
+-----END PUBLIC KEY-----

rust/pv/tests/assets/keys/issuer.crt

@@ -0,0 +1,31 @@
+-----BEGIN CERTIFICATE-----
+MIIFYTCCA0mgAwIBAgIUIDYNUFtHABjQvM11wfnJrL2T9v8wDQYJKoZIhvcNAQEL
+BQAwQDELMAkGA1UEBhMCVVMxDDAKBgNVBAoMA0lCTTEQMA4GA1UECwwHVGVzdGlu
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+ARZcI7R0xiEH5+CGCTTurP83RIjPfnyuA1A5GRrbVGyE84Wuhg==
+-----END CERTIFICATE-----

rust/pv/tests/assets/keys/issuer.key

@@ -0,0 +1,52 @@
+-----BEGIN PRIVATE KEY-----
+MIIJQgIBADANBgkqhkiG9w0BAQEFAASCCSwwggkoAgEAAoICAQCfZgnyZ4xGLFwe
+jkQMWbW27yHwLefhMhv24Ug4ctjtix/lUsJ66zwwmk0qdMZVOrV4CVZSDwR+ryhO
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+lk2McJJW97jnWRDYk7pqirFEjO3aoQIDAQABAoICAE8ehP1vbG9AgZEhKKHAvbPJ
+yty+zIQ5LSxD8mciio6OKgzYIXSF4uB1FqxmPjP76itk5xXgImkHZEhRBvuhvzXf
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+cueTJe5j0ktAqcsoeVSOy4qmXj9kHm0xbhg2Oqf/wRjQdcLIy+kkjLmfPVDNfL+6
+AksYI/451m4oegauZYyxD5CkAFZqsGv4JX6X6iSG+hWO29YzG6+hbcDxCwbO+PSP
+W7Q/sYQ+aVTnxo7aimdA7Jox+ooFlFixNHvfFAdsEwxZV02MX6ro+OhaWkkbQa5P
+9RsCggEALy6wnMZNTayzDusQT8Y8mcw+TkM7unESqdcJWGEVsY9bAf/6Fml/37ru
+bBR/7Ai65x188l/tHH4FQxaJkxaIWYLQtMhkVIm2LR0MEdSV6n8IXDr0NeMAXPpe
+UsuWYihWXFk+xTxyB8ejzUIiTcG3AKPp++l9+HGoQpQpoeb2WLfckFvyHhThcR1g
+luqZz0CtRXSJy2XmzSkDHNvjO35Nc8nvcKmQdOHIClutYDtZnwQZltCrms4KGWbK
+NQlYUe+dOO88K6AyR/gQxSN8o4uXxiKY/l5ASyJrMycIY8zvBBUgxlZQHXOzf9qE
+YFF7USKdWC1isfkk3OmsHvIwXzfRUA==
+-----END PRIVATE KEY-----

rust/pvattest/src/cli.rs

@@ -5,7 +5,10 @@
 use std::path::PathBuf;
 
 use clap::{Args, Parser, Subcommand, ValueEnum, ValueHint};
-use utils::{CertificateOptions, DeprecatedVerbosityOptions};
+use utils::{
+    AutoOrExplicit, CertificateOptions, DeprecatedVerbosityOptions, HkdVersion, ValueEnumDisplay,
+    ValueEnumFromStr,
+};
 
 /// create, perform, and verify attestation measurements
 ///
@@ -67,6 +70,28 @@ pub enum Command {
     Version,
 }
 
+/// Secure Execution attestation version for CLI
+#[derive(Debug, Clone, Copy, PartialEq, Eq, ValueEnum, ValueEnumDisplay, ValueEnumFromStr)]
+pub enum AttVersion {
+    #[value(name = "1")]
+    /// Version 1 - uses traditional cryptographic keys
+    V1,
+    #[value(name = "2")]
+    /// Version 2 - uses hybrid (post-quantum) cryptographic keys
+    V2,
+}
+
+pub type AttVersionSelection = AutoOrExplicit<AttVersion>;
+
+impl From<AttVersion> for HkdVersion {
+    fn from(val: AttVersion) -> Self {
+        match val {
+            AttVersion::V1 => Self::Classical,
+            AttVersion::V2 => Self::Hybrid,
+        }
+    }
+}
+
 #[derive(Args, Debug)]
 pub struct CreateAttOpt {
     #[command(flatten)]
@@ -94,6 +119,10 @@ pub struct CreateAttOpt {
         value_delimiter = ','
     )]
     pub add_data: Vec<AttAddFlags>,
+
+    /// Specify the Attestation Request version to use.
+    #[arg(long = "att-version", value_name = "VERSION", default_value_t = AttVersion::V1)]
+    pub att_version: AttVersion,
 }
 
 #[derive(Debug, ValueEnum, Clone, Copy)]

rust/pvattest/src/cmd.rs

@@ -12,7 +12,7 @@ pub use check::check;
 pub use create::create;
 pub use verify::verify;
 
-pub const CMD_FN: &[&str] = &["+create", "+verify"];
+pub const CMD_FN: &[&str] = &["+create", "+verify", "+quantumsafe"];
 // s390 branch
 #[cfg(target_arch = "s390x")]
 mod uv_cmd {

rust/pvattest/src/cmd/check/host_key.rs

@@ -6,10 +6,9 @@ use std::fmt::Display;
 use std::path::Path;
 
 use anyhow::Result;
-use log::{debug, info};
+use log::{debug, info, warn};
 use pv::misc::{read_certs, read_file};
-use pv::request::openssl::DigestBytes;
-use pv::request::EcPubKeyCoord;
+use pv::request::{EcPubKeyCoord, HybridPKey, KeyslotV2};
 use serde::Serialize;
 use utils::HexSlice;
 
@@ -36,7 +35,7 @@ impl Display for HkCheck {
     }
 }
 
-fn load_host_keys<A: AsRef<Path>>(hkds: &[A]) -> Result<Vec<(&Path, DigestBytes)>> {
+fn load_host_keys<A: AsRef<Path>>(hkds: &[A]) -> Result<Vec<(&Path, Vec<u8>)>> {
     let mut hkd_hash = Vec::with_capacity(hkds.len());
     for hkd in hkds {
         let hkd = hkd.as_ref();
@@ -45,21 +44,41 @@ fn load_host_keys<A: AsRef<Path>>(hkds: &[A]) -> Result<Vec<(&Path, DigestBytes)
             hkd: hkd.display().to_string(),
             source,
         })?;
-        let ec_coord: EcPubKeyCoord = certs.first().unwrap().public_key()?.as_ref().try_into()?;
-        hkd_hash.push((hkd, ec_coord.sha256()?));
+
+        let ec_key = certs.first().unwrap().public_key()?;
+
+        match certs.len() {
+            1 => {
+                let ec_coord: EcPubKeyCoord = ec_key.as_ref().try_into()?;
+                hkd_hash.push((hkd, ec_coord.sha256()?.as_ref().to_vec()));
+            }
+            2 => {
+                let mlkem_key = certs[1].public_key()?;
+                let ks = KeyslotV2::new(HybridPKey::new(ec_key, mlkem_key)?);
+                let hash = ks.sha512()?;
+                hkd_hash.push((hkd, hash[..32].to_vec()));
+            }
+            _ => {
+                warn!(
+                    "The host-key document in '{}' contains more than two certificates!",
+                    hkd.display()
+                );
+                Err(pv::Error::WrongNumberOfKeys(hkd.display().to_string()))?;
+            }
+        }
     }
     Ok(hkd_hash)
 }
 
 fn contains_phkh<'a>(
-    hkd_hashes: &[(&'a Path, DigestBytes)],
+    hkd_hashes: &[(&'a Path, Vec<u8>)],
     phkh: &HexSlice<'_>,
     mode: HkCheck,
     check_enforced: bool,
 ) -> CheckState<HostKeyCheck<'a>> {
     let hk: Vec<_> = hkd_hashes
         .iter()
-        .filter_map(|(path, hash)| match hash.as_ref() == phkh.as_ref() {
+        .filter_map(|(path, hash)| match hash == phkh.as_ref() {
             true => Some(*path),
             false => None,
         })

rust/pvattest/src/cmd/create.rs

@@ -10,7 +10,7 @@ use pv::attest::{AttestationFlags, AttestationMeasAlg, AttestationRequest, Attes
 use pv::misc::{create_file, write_file};
 use pv::request::{HostKey, ReqEncrCtx, Request, SymKey, SymKeyType};
 
-use crate::cli::{AttAddFlags, CreateAttOpt};
+use crate::cli::{AttAddFlags, AttVersion, AttVersionSelection, CreateAttOpt};
 use crate::exchange::{ExchangeFormatRequest, ExchangeFormatVersion};
 
 fn flags(cli_flags: &[AttAddFlags]) -> AttestationFlags {
@@ -26,18 +26,57 @@ fn flags(cli_flags: &[AttAddFlags]) -> AttestationFlags {
     att_flags
 }
 
+/// Auto-detect the attestation version based on the host keys.
+///
+/// Returns Two if any host key is a hybrid key, otherwise returns V1.
+fn auto_detect_version(host_keys: &[HostKey]) -> AttestationVersion {
+    let use_hybrid_keys = host_keys.iter().any(|k: &HostKey| k.is_hybrid());
+    if use_hybrid_keys {
+        AttestationVersion::Two
+    } else {
+        AttestationVersion::One
+    }
+}
+
+impl From<AttVersion> for AttestationVersion {
+    fn from(value: AttVersion) -> Self {
+        match value {
+            AttVersion::V1 => Self::One,
+            AttVersion::V2 => Self::Two,
+        }
+    }
+}
+
+/// Determine the attestation  version to use.
+///
+/// If an explicit version is provided via CLI, use that.
+/// Otherwise, auto-detect based on the host key types.
+fn determine_version(
+    cli_version: AttVersionSelection,
+    host_keys: &[HostKey],
+) -> AttestationVersion {
+    match cli_version {
+        AttVersionSelection::Auto => auto_detect_version(host_keys),
+        AttVersionSelection::Explicit(att_version) => att_version.into(),
+    }
+}
+
 pub fn create(opt: &CreateAttOpt) -> Result<ExitCode> {
-    let att_version = AttestationVersion::One;
+    let hkds = opt.certificate_args.get_verified_hkds(
+        "attestation request",
+        AttVersionSelection::Explicit(opt.att_version).map(|v| v.into()),
+    )?;
+
+    let att_version = determine_version(AttVersionSelection::Explicit(opt.att_version), &hkds);
     let meas_alg = AttestationMeasAlg::HmacSha512;
 
     let mut arcb = AttestationRequest::new(att_version, meas_alg, flags(&opt.add_data))?;
     debug!("Generated Attestation request");
 
     // Add host-key documents
-    opt.certificate_args
-        .get_verified_hkds("attestation request")?
-        .into_iter()
-        .for_each(|k| arcb.add_hostkey(HostKey::V1(k)));
+    for k in hkds.into_iter() {
+        arcb.add_hostkey(k)?
+    }
     debug!("Added all host-keys");
 
     let encr_ctx =

rust/pvattest/src/exchange.rs

@@ -11,6 +11,8 @@ use pv::request::MagicValue;
 use pv::uv::{AttestationCmd, ConfigUid};
 use zerocopy::{BigEndian, ByteOrder, FromBytes, Immutable, IntoBytes, KnownLayout, U32, U64};
 
+use crate::additional;
+
 const INV_EXCHANGE_FMT_ERROR_TEXT: &str = "The input has not the correct format:";
 
 #[repr(C)]
@@ -99,10 +101,18 @@ impl ExchangeFormatV1Hdr {
         let measurement_entry = Entry::from_exp(Some(measurement));
         let exp_add = match additional {
             0 => None,
-            size => Some(size),
+            size => {
+                if size > AttestationCmd::ADDITIONAL_MAX_SIZE {
+                    bail!(
+                        "Additional data size ({}) exceeds maximum allowed size ({})",
+                        size,
+                        AttestationCmd::ADDITIONAL_MAX_SIZE
+                    );
+                }
+                Some(size)
+            }
         };
-        // TODO min and max size check?
-        let additional_entry = Entry::from_exp(exp_add); //, AttestationCmd::ADDITIONAL_MAX_SIZE, &mut offset);
+        let additional_entry = Entry::from_exp(exp_add);
         let user_entry = Entry::from_none();
         let cuid_entry = Entry::from_none();
 
@@ -530,7 +540,6 @@ impl ExchangeFormatResponse {
             "{INV_EXCHANGE_FMT_ERROR_TEXT} Contains no attestation request.",
         ))?;
 
-        // TODO remove unwrap
         let measurement = hdr.measurement.read(reader)?.data().ok_or(anyhow!(
             "{INV_EXCHANGE_FMT_ERROR_TEXT} Contains no attestation response (Measurement missing).",
         ))?;
@@ -614,9 +623,12 @@ mod test {
         measurement: usize,
         additional: usize,
     ) {
-        // TODO as 32 checks
-        let ctx_write = ExchangeFormatRequest::new(arcb, measurement as u32, additional as u32)
-            .expect("exchange fmt creation");
+        let ctx_write = ExchangeFormatRequest::new(
+            arcb,
+            measurement.try_into().unwrap(),
+            additional.try_into().unwrap(),
+        )
+        .expect("exchange fmt creation");
 
         // let mut out = create_file(path).unwrap();
         let mut out = vec![];
@@ -693,6 +705,50 @@ mod test {
         ExchangeFormatRequest::new(ARCB.to_vec(), 0, ADDITIONAL.len() as u32).unwrap_err();
     }
 
+    #[test]
+    fn test_additional_data_size_validation() {
+        // Test for TODO 1 fix: Additional data size validation
+        let arcb = ARCB.to_vec();
+
+        // Test with valid size at maximum
+        let result = ExchangeFormatV1Hdr::new_request(
+            &arcb,
+            MEASUREMENT.len() as u32,
+            AttestationCmd::ADDITIONAL_MAX_SIZE,
+        );
+        assert!(
+            result.is_ok(),
+            "Maximum additional data size should be accepted"
+        );
+
+        // Test with size exceeding maximum
+        let result = ExchangeFormatV1Hdr::new_request(
+            &arcb,
+            MEASUREMENT.len() as u32,
+            AttestationCmd::ADDITIONAL_MAX_SIZE + 1,
+        );
+        assert!(
+            result.is_err(),
+            "Additional data size exceeding maximum should fail"
+        );
+
+        if let Err(e) = result {
+            let error_msg = e.to_string();
+            assert!(
+                error_msg.contains("exceeds maximum"),
+                "Error should mention exceeding maximum: {}",
+                error_msg
+            );
+        }
+
+        // Test with zero size (no additional data)
+        let result = ExchangeFormatV1Hdr::new_request(&arcb, MEASUREMENT.len() as u32, 0);
+        assert!(
+            result.is_ok(),
+            "Zero additional data size should be accepted"
+        );
+    }
+
     #[test]
     fn min_req() {
         test_read_write_request(

rust/pvimg/examples/create-sehdr/main.rs

@@ -10,15 +10,18 @@ use std::path::PathBuf;
 use std::str::FromStr;
 
 use anyhow::{anyhow, Context, Error};
-use clap::{Parser, ValueHint};
-use log::{info, warn};
-use pv::misc::{decode_hex, open_file, read_certs, read_file, try_parse_u64};
-use pv::request::SymKeyType;
-use pv::{Error as PvError, Result};
+use clap::{Parser, ValueEnum, ValueHint};
+use log::info;
+use pv::misc::{decode_hex, open_file, read_file, try_parse_u64};
+use pv::request::{HostKey, NoVerifyHkd, SymKeyType};
+use pv::Result;
 use pvimg::misc::PSW;
 use pvimg::secured_comp::{ComponentTrait, Layout, SecuredComponentBuilder};
-use pvimg::uvdata::{BuilderTrait, SeHdrBuilder, SeHdrVersion};
-use utils::{AtomicFile, AtomicFileOperation, HexSlice, PvLogger, VerbosityOptions};
+use pvimg::uvdata::{BuilderTrait, SeHdrBuilder, SeHdrControlFlags, SeHdrVersion, SeTarget};
+use utils::{
+    AtomicFile, AtomicFileOperation, HexSlice, HkdLoader, HkdVersionSelection, PvLogger,
+    VerbosityOptions,
+};
 
 /// Converts the hexstring into a byte vector.
 ///
@@ -87,6 +90,38 @@ impl Display for ComponentArg {
     }
 }
 
+/// SE-header version selection
+#[derive(Debug, Clone, Copy, ValueEnum)]
+enum SeHdrVersionArg {
+    /// SE-header version 1
+    #[value(name = "1")]
+    V1,
+    /// SE-header version 2
+    #[value(name = "2")]
+    V2,
+}
+
+impl From<SeHdrVersionArg> for SeHdrVersion {
+    fn from(arg: SeHdrVersionArg) -> Self {
+        match arg {
+            SeHdrVersionArg::V1 => SeHdrVersion::V1,
+            SeHdrVersionArg::V2 => SeHdrVersion::V2,
+        }
+    }
+}
+
+impl SeHdrVersionArg {
+    /// Detect the SE header version from the keys.
+    /// Returns V2 if any key is hybrid, otherwise V1.
+    pub fn detect<K: AsRef<[HostKey]>>(keys: K) -> Self {
+        if keys.as_ref().iter().any(|k| !k.is_hybrid()) {
+            Self::V1
+        } else {
+            Self::V2
+        }
+    }
+}
+
 /// Create a Secure Execution header.
 #[derive(Parser, Debug)]
 pub struct Args {
@@ -129,6 +164,10 @@ pub struct Args {
     #[arg(short, long)]
     pub output: PathBuf,
 
+    /// SE-header version to build
+    #[arg(long, value_enum)]
+    version: Option<SeHdrVersionArg>,
+
     #[clap(flatten)]
     pub verbosity: VerbosityOptions,
 }
@@ -203,36 +242,26 @@ fn main() -> anyhow::Result<()> {
     info!("\n# Creating Secure Execution Header");
     let addr = args.psw_addr;
     let mask = args.psw_mask;
-    let mut builder = SeHdrBuilder::new(
-        SeHdrVersion::V1,
-        PSW { addr, mask },
-        secure_comp_builer.finish()?,
-    )?;
     let mut target_pub_keys = vec![];
     for hkd_path in args.host_key_documents {
         info!(
             "Use the file '{}' as a host key document",
             hkd_path.display()
         );
-        let hkd_data = read_file(&hkd_path, "host key document")?;
-        let certs = read_certs(&hkd_data)?;
-        if certs.is_empty() {
-            return Err(PvError::NoHkdInFile(hkd_path.display().to_string()).into());
-        }
-
-        if certs.len() > 1 {
-            warn!("The host key document in '{}' contains more than one certificate! All keys will be used.",
-                  hkd_path.display());
-        }
-
-        for cert in &certs {
-            target_pub_keys.push(cert.public_key()?);
-        }
+        let cert = HkdLoader::load_and_verify(&hkd_path, &NoVerifyHkd, HkdVersionSelection::Auto)?;
+        target_pub_keys.push(cert);
     }
+    let version: SeHdrVersion = args
+        .version
+        .unwrap_or(SeHdrVersionArg::detect(&target_pub_keys))
+        .into();
+    let target = SeTarget::from_se_hdr_version(version);
+    let pcf = SeHdrControlFlags::from_u64(try_parse_u64(&args.pcf, "pcf")?, target, true);
+    let scf = SeHdrControlFlags::from_u64(try_parse_u64(&args.scf, "scf")?, target, false);
+    info!("SE-header version ...: {}", version);
+    let mut builder = SeHdrBuilder::new(version, PSW { addr, mask }, secure_comp_builer.finish()?)?;
     builder.add_hostkeys(&target_pub_keys)?;
 
-    let pcf = try_parse_u64(&args.pcf, "pcf")?.into();
-    let scf = try_parse_u64(&args.scf, "scf")?.into();
     info!(
         "PSW addr ............: {addr:#018x}\n\
          PSW mask ............: {mask:#018x}\n\

rust/pvimg/src/cli.rs

@@ -13,7 +13,56 @@ use std::string::ToString;
 use clap::builder::{PossibleValue, TypedValueParser};
 use clap::{Arg, ArgGroup, Args, Command, CommandFactory, Parser, ValueEnum, ValueHint};
 use log::warn;
-use utils::{CertificateOptions, DeprecatedVerbosityOptions};
+use utils::{
+    AutoOrExplicit, CertificateOptions, DeprecatedVerbosityOptions, HkdVersion, ValueEnumDisplay,
+    ValueEnumFromStr,
+};
+
+/// SE header control flags for CLI
+#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash, ValueEnum, ValueEnumDisplay)]
+#[value(rename_all = "kebab-case")]
+pub enum SeHdrFlagName {
+    /// Confidential guest dump support
+    ConfidentialDump,
+    /// DEA/TDEA PCKMO key encryption support
+    PckmoDeaTdea,
+    /// AES PCKMO key encryption support
+    PckmoAes,
+    /// ECC PCKMO key encryption support
+    PckmoEcc,
+    /// HMAC PCKMO key encryption support
+    PckmoHmac,
+    /// Backup target keys support
+    BackupTargetKeys,
+    /// CCK-derived extension secret enforcement for add-secret requests
+    CckExtensionSecretEnforcement,
+    /// CCK update support
+    CckUpdate,
+    /// Image components without encryption
+    NoComponentEncryption,
+}
+
+/// Secure Execution header version for CLI
+#[derive(Debug, Clone, Copy, PartialEq, Eq, ValueEnum, ValueEnumDisplay, ValueEnumFromStr)]
+pub enum HdrVersion {
+    #[value(name = "1")]
+    /// Version 1 - uses traditional cryptographic keys
+    V1,
+    #[value(name = "2")]
+    /// Version 2 - uses hybrid (post-quantum) cryptographic keys
+    V2,
+}
+
+pub type HdrVersionSelection = AutoOrExplicit<HdrVersion>;
+
+impl From<HdrVersion> for HkdVersion {
+    fn from(val: HdrVersion) -> Self {
+        match val {
+            HdrVersion::V1 => Self::Classical,
+            HdrVersion::V2 => Self::Hybrid,
+        }
+    }
+}
 
 /// Create and inspect IBM Secure Execution images.
 ///
@@ -56,6 +105,28 @@ impl CliOptions {
     }
 }
 
+/// Defines a requirement rule for CLI validation.
+///
+/// A requirement specifies that certain flags require a specific option to be present.
+/// For example, the `ConfidentialDump` flag requires the `--cck` option.
+struct Requirement {
+    /// The flags that trigger this requirement
+    flags: &'static [SeHdrFlagName],
+    /// The option name that must be present (e.g., "cck")
+    option: &'static str,
+    /// Whether the required option is present
+    present: bool,
+}
+
+/// Defines a set of flags that cannot be used together.
+///
+/// When multiple flags from this set are present in the command line,
+/// a validation error is raised with a dynamically generated message
+/// listing the conflicting flags.
+struct MutuallyExclusiveFlags {
+    flags: &'static [SeHdrFlagName],
+}
+
 /// Validates the given command line options.
 ///
 /// # Errors
@@ -71,6 +142,92 @@ pub fn validate_cli(opts: &CliOptions) -> Result<(), clap::error::Error> {
             {
                 warn!("Use bootloader directory: {}", dir.display());
             }
+
+            // Check that a user provided CCK is available
+            let rules = [Requirement {
+                flags: &[
+                    SeHdrFlagName::ConfidentialDump,
+                    SeHdrFlagName::CckExtensionSecretEnforcement,
+                ],
+                option: LONG_FLAG_CCK,
+                present: create_opts.keys.cck.is_some(),
+            }];
+            for r in rules {
+                let offenders: Vec<_> = r
+                    .flags
+                    .iter()
+                    .filter(|f| create_opts.flags.contains(f))
+                    .collect();
+
+                if !offenders.is_empty() && !r.present {
+                    return Err(clap::Error::raw(
+                        clap::error::ErrorKind::MissingRequiredArgument,
+                        format!(
+                            "flag(s) {} require(s) --{}",
+                            offenders
+                                .iter()
+                                .map(|f| format!("{:?}", f))
+                                .collect::<Vec<_>>()
+                                .join(", "),
+                            r.option
+                        ),
+                    ));
+                }
+            }
+
+            // Check for conflicts between --flags and --disable-flags
+            if !create_opts.flags.is_empty() && !create_opts.disable_flags.is_empty() {
+                use std::collections::HashSet;
+                let flags_set: HashSet<_> = create_opts.flags.iter().collect();
+                let disable_flags_set: HashSet<_> = create_opts.disable_flags.iter().collect();
+
+                let conflicts: Vec<_> = flags_set
+                    .intersection(&disable_flags_set)
+                    .copied()
+                    .collect();
+
+                if !conflicts.is_empty() {
+                    return Err(clap::Error::raw(
+                        clap::error::ErrorKind::ArgumentConflict,
+                        // Print the flag name using the kebab-case notation (using to_possible_value)
+                        format!(
+                            "Conflicting flags detected: the following flags are specified in both --flags and --disable-flags: {}",
+                            conflicts.iter().map(|x| format!("{x}")).collect::<Vec<_>>().join(", ")
+                        ),
+                    ));
+                }
+            }
+
+            // Check for mutually exclusive flags within --flags
+            let exclusion_rules = [MutuallyExclusiveFlags {
+                flags: &[
+                    SeHdrFlagName::CckExtensionSecretEnforcement,
+                    SeHdrFlagName::CckUpdate,
+                ],
+            }];
+
+            for rule in exclusion_rules {
+                let conflicting_flags: Vec<_> = rule
+                    .flags
+                    .iter()
+                    .filter(|f| create_opts.flags.contains(f))
+                    .collect();
+
+                if conflicting_flags.len() > 1 {
+                    return Err(clap::Error::raw(
+                        clap::error::ErrorKind::ArgumentConflict,
+                        format!(
+                            "The following flags cannot be used together: {}",
+                            conflicting_flags
+                                .iter()
+                                .map(|f| format!("'{}'", f))
+                                .collect::<Vec<_>>()
+                                .join(", ")
+                        ),
+                    ));
+                }
+            }
+
             Ok(())
         }
         _ => Ok(()),
@@ -100,6 +257,8 @@ pub struct ComponentPaths {
     pub parmfile: Option<PathBuf>,
 }
 
+const LONG_FLAG_CCK: &str = "cck";
+
 /// CLI Argument collection for handling user-provided keys.
 #[derive(Args, Debug)]
 #[cfg_attr(test, derive(Default))]
@@ -109,7 +268,7 @@ pub struct UserKeys {
     /// The file must contain exactly 32 bytes of data. In previous versions,
     /// this option was called '--comm-key'.
     #[arg(
-        long,
+        long = LONG_FLAG_CCK,
         value_name = "FILE",
         group = "cck-available",
         visible_alias = "comm-key"
@@ -184,11 +343,13 @@ pub struct CreateBootImageLegacyFlags {
     #[arg(long, action = clap::ArgAction::SetTrue, conflicts_with="enable_pckmo", group="header-flags")]
     pub disable_pckmo: Option<bool>,
 
-    /// Enable the support for the HMAC PCKMO key encryption function.
+    /// Enable the support for the HMAC PCKMO key encryption function (default for header version
+    /// 2).
     #[arg(long, action = clap::ArgAction::SetTrue, group="header-flags")]
     pub enable_pckmo_hmac: Option<bool>,
 
-    /// Disable the support for the HMAC PCKMO key encryption function (default).
+    /// Disable the support for the HMAC PCKMO key encryption function (default for header version
+    /// 1).
     #[arg(long, action = clap::ArgAction::SetTrue, conflicts_with="enable_pckmo_hmac", group="header-flags")]
     pub disable_pckmo_hmac: Option<bool>,
 
@@ -519,7 +680,6 @@ impl GenprotimgCliOptions {
 }
 
 #[derive(Parser, Debug)]
-#[cfg_attr(test, derive(Default))]
 pub struct CreateBootImageArgs {
     #[clap(flatten)]
     pub component_paths: ComponentPaths,
@@ -542,16 +702,62 @@ pub struct CreateBootImageArgs {
     #[arg(long)]
     pub overwrite: bool,
 
+    /// Specify the Secure Execution header version to use.
+    #[arg(long = "hdr-version", value_name = "VERSION", default_value_t = HdrVersion::V1)]
+    pub hdr_version: HdrVersion,
+
     #[clap(flatten)]
     pub keys: UserKeys,
 
     #[clap(flatten)]
+    // TODO Declare as deprecated
     pub legacy_flags: CreateBootImageLegacyFlags,
 
+    /// Set control flags using comma-separated flag names.
+    ///
+    /// Specify flags to enable using their names.
+    #[arg(
+        long,
+        value_name = "FLAGS",
+        value_delimiter = ',',
+        conflicts_with_all = ["header-flags", "x_pcf", "x_scf"]
+    )]
+    pub flags: Vec<SeHdrFlagName>,
+
+    /// Set control flags using comma-separated flag names.
+    ///
+    /// Specify flags to disable using their names.
+    #[arg(
+        long,
+        value_name = "FLAGS",
+        value_delimiter = ',',
+        conflicts_with_all = ["header-flags", "x_pcf", "x_scf"]
+    )]
+    pub disable_flags: Vec<SeHdrFlagName>,
+
     #[clap(flatten)]
     pub experimental_args: CreateBootImageExperimentalArgs,
 }
 
+#[cfg(test)]
+impl Default for CreateBootImageArgs {
+    fn default() -> Self {
+        Self {
+            component_paths: ComponentPaths::default(),
+            output: PathBuf::new(),
+            certificate_args: CertificateOptions::default(),
+            no_component_check: false,
+            overwrite: false,
+            hdr_version: HdrVersion::V1,
+            keys: UserKeys::default(),
+            legacy_flags: CreateBootImageLegacyFlags::default(),
+            flags: Vec::new(),
+            disable_flags: Vec::new(),
+            experimental_args: CreateBootImageExperimentalArgs::default(),
+        }
+    }
+}
+
 /// Experimental options
 #[derive(Args, Debug)]
 #[cfg_attr(test, derive(Default))]
@@ -666,6 +872,62 @@ mod test {
         map
     }
 
+    // Helper to test valid args - generic over parse and convert functions
+    fn test_valid_args<F>(args_list: Vec<Vec<&str>>, parse_and_convert: F, name: &str)
+    where
+        F: Fn(&[&str]) -> Result<CliOptions, clap::Error>,
+    {
+        for arg in args_list {
+            let res = parse_and_convert(&arg);
+            #[allow(clippy::use_debug, clippy::print_stdout)]
+            if let Err(e) = &res {
+                println!("{name} arg: {arg:?}");
+                println!("{e}");
+            }
+            assert!(res.is_ok(), "{name} failed for: {arg:?}");
+        }
+    }
+
+    // Helper to test invalid args - expects parse or validation to fail
+    fn test_invalid_args<F>(
+        test_cases: &[(&[Vec<String>], clap::error::ErrorKind, &str)],
+        cmd_prefix: &[&str],
+        parse_and_convert: F,
+        name: &str,
+    ) where
+        F: Fn(&[&str]) -> Result<CliOptions, clap::Error>,
+    {
+        for (test_group, expected_kind, kind_name) in test_cases {
+            for args in *test_group {
+                let full_args = [
+                    cmd_prefix.to_vec(),
+                    Vec::from_iter(args.iter().map(String::as_str)),
+                ]
+                .concat();
+
+                // Try parse and convert
+                let parse_result = parse_and_convert(&full_args);
+
+                let err = match parse_result {
+                    Ok(cli_opts) => {
+                        // Parse succeeded, validation must fail
+                        validate_cli(&cli_opts).expect_err(&format!(
+                            "{name}: Expected error ({kind_name}) but both parse and validation succeeded for: {full_args:?}"
+                        ))
+                    }
+                    Err(e) => e, // Parse failed as expected
+                };
+
+                assert_eq!(
+                    err.kind(),
+                    *expected_kind,
+                    "{name}: Expected {kind_name} but got {:?} for args: {full_args:?}\nError: {err}",
+                    err.kind()
+                );
+            }
+        }
+    }
+
     #[test]
     #[rustfmt::skip]
     fn genprotimg_and_pvimg_create_args() {
@@ -734,16 +996,67 @@ mod test {
             // --comm-key with --enable-cck-update (alias test)
             flat_map_collect(insert(mvca.clone(), vec![CliOption::new("comm-key", ["--comm-key", "/dev/null"]),
                                                        CliOption::new("enable-cck-update", ["--enable-cck-update"])])),
+
+            // --disable-flags tests
+            // Test --disable-flags alone
+            flat_map_collect(insert(mvca.clone(), vec![CliOption::new("disable-flags", ["--disable-flags", &SeHdrFlagName::PckmoHmac.to_string()])])),
+            // Test --flags and --disable-flags without conflict
+            flat_map_collect(insert(mvca.clone(), vec![
+                CliOption::new("flags", ["--flags", &SeHdrFlagName::ConfidentialDump.to_string()]),
+                CliOption::new("disable-flags", ["--disable-flags", &SeHdrFlagName::PckmoHmac.to_string()]),
+                CliOption::new("cck", ["--cck", "/dev/null"])
+            ])),
+            // Test multiple --disable-flags
+            flat_map_collect(insert(mvca.clone(), vec![CliOption::new("disable-flags", ["--disable-flags", &format!("{},{}", SeHdrFlagName::PckmoHmac, SeHdrFlagName::BackupTargetKeys)])])),
+            // Test --flags and --disable-flags with different flags
+            flat_map_collect(insert(mvca.clone(), vec![
+                CliOption::new("flags", ["--flags", &format!("{},{}", SeHdrFlagName::ConfidentialDump, SeHdrFlagName::BackupTargetKeys)]),
+                CliOption::new("disable-flags", ["--disable-flags", &format!("{},{}", SeHdrFlagName::PckmoHmac, SeHdrFlagName::NoComponentEncryption)]),
+                CliOption::new("cck", ["--cck", "/dev/null"])
+            ])),
+
+            // --flags tests (equivalent to --enable-* tests)
+            // Test --flags with confidential-dump (equivalent to --enable-dump)
+            flat_map_collect(insert(mvca.clone(), vec![
+                CliOption::new("flags", ["--flags", &SeHdrFlagName::ConfidentialDump.to_string()]),
+                CliOption::new("cck", ["--cck", "/dev/null"])
+            ])),
+
+            // Test with --overwrite
+            flat_map_collect(insert(mvca.clone(), vec![CliOption::new("overwrite", ["--overwrite"])])),
+
+            // Test with --no-component-check
+            flat_map_collect(insert(mvca.clone(), vec![CliOption::new("no-component-check", ["--no-component-check"])])),
+
+            // Test with all PCKMO flags
+            flat_map_collect(insert(mvca.clone(), vec![CliOption::new("flags", ["--flags", &format!("{},{},{},{}",
+                                                                                                    SeHdrFlagName::PckmoDeaTdea, SeHdrFlagName::PckmoAes, SeHdrFlagName::PckmoEcc, SeHdrFlagName::PckmoHmac)])])),
+
+            // Test with NoComponentEncryption flag
+            flat_map_collect(insert(mvca.clone(), vec![CliOption::new("flags", ["--flags", &SeHdrFlagName::NoComponentEncryption.to_string()])])),
+
+            // Test with HdrVersion V2
+            flat_map_collect(insert(mvca.clone(), vec![CliOption::new("hdr-version", ["--hdr-version", "2"])])),
         ];
-        let invalid_create_args = [
+        // Invalid test cases grouped by expected error kind
+        let invalid_missing_required = [
             flat_map_collect(remove(mvcanv.clone(), "no-verify")),
             flat_map_collect(remove(mvcanv.clone(), "image")),
             flat_map_collect(remove(mvcanv.clone(), "hkd")),
             flat_map_collect(remove(mvcanv, "output")),
-
-            // missing both `--cck' and `--enable-cck-update'
+            // missing both `--cck' and `--enable-cck-update' (required by --enable-dump)
             flat_map_collect(insert(mvca.clone(), vec![CliOption::new("enable-dump", ["--enable-dump"])])),
+            // Test --flags with confidential-dump but missing --cck (equivalent to --enable-dump without --cck)
+            flat_map_collect(insert(mvca.clone(), vec![CliOption::new("flags", ["--flags", &SeHdrFlagName::ConfidentialDump.to_string()])])),
+            // --enable-cck-extension-secret without cck-available (validation error, semantically missing required)
+            flat_map_collect(insert(mvca.clone(), vec![CliOption::new("enable-cck-extension-secret", ["--enable-cck-extension-secret"])])),
+        ];
 
+        let invalid_value = [
+            flat_map_collect(insert(mvca.clone(), vec![CliOption::new("x-header-key", ["--hdr-key"]),])),
+        ];
+
+        let invalid_conflict = [
             // -v and -q cannot be combined
             flat_map_collect(insert(mvca.clone(), vec![
                 CliOption::new("verbose", ["-v"]),
@@ -761,7 +1074,6 @@ mod test {
                                                    CliOption::new("disable-pckmo", ["--disable-pckmo"])])),
             flat_map_collect(insert(mvca.clone(), vec![CliOption::new("enable-image-encryption", ["--enable-image-encryption"]),
                                                    CliOption::new("disable-image-encryption", ["--disable-image-encryption"])])),
-            flat_map_collect(insert(mvca.clone(), vec![CliOption::new("x-header-key", ["--hdr-key"]),])),
             flat_map_collect(insert(mvca.clone(), vec![CliOption::new("extension", ["--enable-cck-extension-secret"]),
                                                    CliOption::new("update", ["--enable-cck-update"])])),
 
@@ -776,13 +1088,55 @@ mod test {
             flat_map_collect(insert(mvca.clone(), vec![CliOption::new("disable-image-encryption", ["--disable-image-encryption"]),
                                                        CliOption::new("image-key", ["--image-key", "/dev/null"])])),
 
-            // cck-available group tests: invalid combinations
-            // --enable-cck-extension-secret without cck-available
-            flat_map_collect(insert(mvca.clone(), vec![CliOption::new("enable-cck-extension-secret", ["--enable-cck-extension-secret"])])),
             // --enable-cck-extension-secret with --enable-cck-update and --cck (conflict takes precedence)
             flat_map_collect(insert(mvca.clone(), vec![CliOption::new("enable-cck-extension-secret", ["--enable-cck-extension-secret"]),
                                                        CliOption::new("enable-cck-update", ["--enable-cck-update"]),
                                                        CliOption::new("cck", ["--cck", "/dev/null"])])),
+
+            // --disable-flags conflict tests
+            // Test conflict between --flags and --disable-flags (same flag in both)
+            flat_map_collect(insert(mvca.clone(), vec![
+                CliOption::new("flags", ["--flags", &SeHdrFlagName::ConfidentialDump.to_string()]),
+                CliOption::new("disable-flags", ["--disable-flags", &SeHdrFlagName::ConfidentialDump.to_string()]),
+                CliOption::new("cck", ["--cck", "/dev/null"])
+            ])),
+            // Test multiple conflicts
+            flat_map_collect(insert(mvca.clone(), vec![
+                CliOption::new("flags", ["--flags", &format!("{},{}", SeHdrFlagName::ConfidentialDump, SeHdrFlagName::PckmoHmac)]),
+                CliOption::new("disable-flags", ["--disable-flags", &format!("{},{}", SeHdrFlagName::ConfidentialDump, SeHdrFlagName::PckmoHmac)]),
+                CliOption::new("cck", ["--cck", "/dev/null"])
+            ])),
+
+            // --flags conflicts with --x-pcf
+            flat_map_collect(insert(mvca.clone(), vec![
+                CliOption::new("flags", ["--flags", &SeHdrFlagName::ConfidentialDump.to_string()]),
+                CliOption::new("x-pcf", ["--x-pcf", "0x0"]),
+                CliOption::new("cck", ["--cck", "/dev/null"])
+            ])),
+            // --flags conflicts with --x-scf
+            flat_map_collect(insert(mvca.clone(), vec![
+                CliOption::new("flags", ["--flags", &SeHdrFlagName::ConfidentialDump.to_string()]),
+                CliOption::new("x-scf", ["--x-scf", "0x0"]),
+                CliOption::new("cck", ["--cck", "/dev/null"])
+            ])),
+            // --disable-flags conflicts with --x-pcf
+            flat_map_collect(insert(mvca.clone(), vec![
+                CliOption::new("disable-flags", ["--disable-flags", &SeHdrFlagName::PckmoHmac.to_string()]),
+                CliOption::new("x-pcf", ["--x-pcf", "0x0"])
+            ])),
+            // --disable-flags conflicts with --x-scf
+            flat_map_collect(insert(mvca.clone(), vec![
+                CliOption::new("disable-flags", ["--disable-flags", &SeHdrFlagName::PckmoHmac.to_string()]),
+                CliOption::new("x-scf", ["--x-scf", "0x0"])
+            ])),
+
+            // Test --flags with cck-extension-secret and cck-update and --cck
+            // (conflict, equivalent to --enable-cck-extension-secret)
+            flat_map_collect(insert(mvca, vec![
+                CliOption::new("flags-cck-extension-secret", ["--flags", &SeHdrFlagName::CckExtensionSecretEnforcement.to_string()]),
+                CliOption::new("flags-enable-cck-update", ["--flags", &SeHdrFlagName::CckUpdate.to_string()]),
+                CliOption::new("cck", ["--cck", "/dev/null"])
+            ])),
         ];
 
         let mut genprotimg_valid_args = vec![
@@ -794,53 +1148,31 @@ mod test {
             vec!["pvimg", "version"],
         ];
 
-        // Test for invalid combinations
-        let mut genprotimg_invalid_args = vec![
-            vec!["genprotimg"],
-        ];
-        let mut pvimg_invalid_args = vec![
-            vec!["pvimg"],
-        ];
-
         // Test that `genprotimg` and `pvimg create` behave equally.
         for create_args in &valid_create_args {
             genprotimg_valid_args.push([["genprotimg"].to_vec(), Vec::from_iter(create_args.iter().map(String::as_str))].concat());
             pvimg_valid_args.push([["pvimg", "create"].to_vec(), Vec::from_iter(create_args.iter().map(String::as_str))].concat());
         }
 
-        for invalid_create_args in &invalid_create_args {
-            genprotimg_invalid_args.push([["genprotimg"].to_vec(), Vec::from_iter(invalid_create_args.iter().map(String::as_str))].concat());
-            pvimg_invalid_args.push([["pvimg", "create"].to_vec(), Vec::from_iter(invalid_create_args.iter().map(String::as_str))].concat());
-        }
+        // Test invalid args with expected error kinds
+        let test_cases = [
+            (&invalid_missing_required[..], clap::error::ErrorKind::MissingRequiredArgument, "MissingRequiredArgument"),
+            (&invalid_value[..], clap::error::ErrorKind::InvalidValue, "InvalidValue"),
+            (&invalid_conflict[..], clap::error::ErrorKind::ArgumentConflict, "ArgumentConflict"),
+        ];
 
-        for arg in pvimg_valid_args {
-            let res = CliOptions::try_parse_from(&arg);
-            #[allow(clippy::use_debug, clippy::print_stdout)]
-            if let Err(e) = &res {
-                println!("arg: {arg:?}");
-                println!("{e}");
-            }
-            assert!(res.is_ok());
-        }
+        // Parse and convert functions for each CLI variant
+        let parse_pvimg = |args: &[&str]| CliOptions::try_parse_from(args);
+        // The into converts Result<GenprotimgCliOptions, Error> into Result<CliOptions, Error>
+        let parse_genprotimg = |args: &[&str]| GenprotimgCliOptions::try_parse_from(args).map(Into::into);
 
-        for arg in pvimg_invalid_args {
-            let res = CliOptions::try_parse_from(&arg);
-            assert!(res.is_err());
-        }
-
-        for arg in genprotimg_valid_args {
-            let res = GenprotimgCliOptions::try_parse_from(&arg);
-            #[allow(clippy::use_debug, clippy::print_stdout)]
-            if let Err(e) = &res {
-                println!("arg: {arg:?}");
-                println!("{e}");
-            }
-            assert!(res.is_ok());
-        }
-
-        for arg in genprotimg_invalid_args {
-            let res = GenprotimgCliOptions::try_parse_from(&arg);
-            assert!(res.is_err());
+        // Test both CLI variants
+        for (name, valid_args, cmd_prefix, parse_fn) in [
+            ("pvimg", pvimg_valid_args, &["pvimg", "create"] as &[&str], &parse_pvimg as &dyn Fn(&[&str]) -> Result<CliOptions, clap::Error>),
+            ("genprotimg", genprotimg_valid_args, &["genprotimg"] as &[&str], &parse_genprotimg as &dyn Fn(&[&str]) -> Result<CliOptions, clap::Error>),
+        ] {
+            test_valid_args(valid_args, parse_fn, name);
+            test_invalid_args(&test_cases, cmd_prefix, parse_fn, name);
         }
     }
 
@@ -888,13 +1220,37 @@ mod test {
                     CliOption::new("verbose", ["-VVV"]),
                 ],
             )),
+            // Test with --host-key-document
+            flat_map_collect(insert(
+                args.clone(),
+                vec![
+                    CliOption::new("host-key-document", ["--host-key-document", "/dev/null"]),
+                    CliOption::new("image", ["/dev/null"]),
+                ],
+            )),
+            // Test with multiple --host-key-document (comma-separated)
+            flat_map_collect(insert(
+                args.clone(),
+                vec![
+                    CliOption::new(
+                        "host-key-document",
+                        ["--host-key-document", "/dev/null,/dev/zero"],
+                    ),
+                    CliOption::new("image", ["/dev/null"]),
+                ],
+            )),
         ];
 
-        let invalid_test_args = [
+        // Invalid test cases grouped by expected error kind
+        let invalid_missing_required = [
+            // Missing required test-args group (only image provided, no host-key info)
             flat_map_collect(insert(
                 args.clone(),
                 vec![CliOption::new("image", ["/dev/null"])],
             )),
+        ];
+
+        let invalid_conflict = [
             // the argument '--key-hashes[=<FILE>]' cannot be used with '--host-key-document
             // <FILE>'
             flat_map_collect(insert(
@@ -905,20 +1261,17 @@ mod test {
                     CliOption::new("image", ["/dev/null"]),
                 ],
             )),
-            flat_map_collect(insert(
-                args,
-                vec![
-                    CliOption::new("host-key-hashes2", ["--key-hashes", "/sys/null"]),
-                    CliOption::new("image", ["--", "/dev/null"]),
-                ],
-            )),
         ];
 
-        let mut pvimg_valid_args = vec![];
+        let invalid_unknown_arg = [flat_map_collect(insert(
+            args.clone(),
+            vec![
+                CliOption::new("host-key-hashes2", ["--key-hashes", "/sys/null"]),
+                CliOption::new("image", ["--", "/dev/null"]),
+            ],
+        ))];
 
-        // Test for invalid combinations
-        // Input is missing
-        let mut pvimg_invalid_args = vec![vec!["pvimg", "test"]];
+        let mut pvimg_valid_args = vec![];
 
         for create_args in &valid_test_args {
             pvimg_valid_args.push(
@@ -930,30 +1283,36 @@ mod test {
             );
         }
 
-        for invalid_test_arg in &invalid_test_args {
-            pvimg_invalid_args.push(
-                [
-                    ["pvimg", "test"].to_vec(),
-                    Vec::from_iter(invalid_test_arg.iter().map(String::as_str)),
-                ]
-                .concat(),
-            );
-        }
+        let test_cases = [
+            (
+                &invalid_missing_required[..],
+                clap::error::ErrorKind::MissingRequiredArgument,
+                "MissingRequiredArgument",
+            ),
+            (
+                &invalid_conflict[..],
+                clap::error::ErrorKind::ArgumentConflict,
+                "ArgumentConflict",
+            ),
+            (
+                &invalid_unknown_arg[..],
+                clap::error::ErrorKind::UnknownArgument,
+                "UnknownArgument",
+            ),
+        ];
 
-        for arg in pvimg_valid_args {
-            let res = CliOptions::try_parse_from(&arg);
-            #[allow(clippy::use_debug, clippy::print_stdout)]
-            if let Err(e) = &res {
-                println!("arg: {arg:?}");
-                println!("{e}");
-            }
-            assert!(res.is_ok());
-        }
-
-        for arg in pvimg_invalid_args {
-            let res = CliOptions::try_parse_from(&arg);
-            assert!(res.is_err());
-        }
+        let parse_pvimg = |args: &[&str]| CliOptions::try_parse_from(args);
+        test_valid_args(
+            pvimg_valid_args,
+            &parse_pvimg as &dyn Fn(&[&str]) -> Result<CliOptions, clap::Error>,
+            "pvimg test",
+        );
+        test_invalid_args(
+            &test_cases,
+            &["pvimg", "test"],
+            &parse_pvimg as &dyn Fn(&[&str]) -> Result<CliOptions, clap::Error>,
+            "pvimg test",
+        );
     }
 
     #[test]
@@ -1044,9 +1403,27 @@ mod test {
                     ["--print-schema", "json"],
                 )],
             )),
+            // --show-secrets with --hdr-key
+            flat_map_collect(insert(
+                args.clone(),
+                vec![
+                    CliOption::new("hdr-key", ["--hdr-key", "/dev/null"]),
+                    CliOption::new("show-secrets", ["--show-secrets"]),
+                    CliOption::new("image", ["/dev/null"]),
+                ],
+            )),
+            // text:full format
+            flat_map_collect(insert(
+                args.clone(),
+                vec![
+                    CliOption::new("format", ["--format", "text:full"]),
+                    CliOption::new("image", ["/dev/null"]),
+                ],
+            )),
         ];
 
-        let invalid_test_args = [
+        // Invalid test cases grouped by expected error kind
+        let invalid_value = [
             // No default defined for --format
             flat_map_collect(insert(
                 args.clone(),
@@ -1055,6 +1432,9 @@ mod test {
                     CliOption::new("image", ["--", "/dev/null"]),
                 ],
             )),
+        ];
+
+        let invalid_conflict = [
             // --print-json-schema conflicts with input
             flat_map_collect(insert(
                 args.clone(),
@@ -1081,7 +1461,7 @@ mod test {
             )),
             // --print-json-schema conflicts with --show-secrets
             flat_map_collect(insert(
-                args,
+                args.clone(),
                 vec![
                     CliOption::new("print-json-schema", ["--print-schema", "json"]),
                     CliOption::new("show-secrets", ["--show-secrets"]),
@@ -1091,10 +1471,6 @@ mod test {
 
         let mut pvimg_valid_args = vec![];
 
-        // Test for invalid combinations
-        // Input is missing
-        let mut pvimg_invalid_args = vec![vec!["pvimg", "info"]];
-
         for create_args in &valid_test_args {
             pvimg_valid_args.push(
                 [
@@ -1105,30 +1481,126 @@ mod test {
             );
         }
 
-        for invalid_test_arg in &invalid_test_args {
-            pvimg_invalid_args.push(
-                [
-                    ["pvimg", "info"].to_vec(),
-                    Vec::from_iter(invalid_test_arg.iter().map(String::as_str)),
-                ]
-                .concat(),
-            );
-        }
+        let invalid_format = [
+            // Invalid format variant for text
+            flat_map_collect(insert(
+                args.clone(),
+                vec![
+                    CliOption::new("format", ["--format", "text:minify"]),
+                    CliOption::new("image", ["/dev/null"]),
+                ],
+            )),
+            // Invalid format variant for json
+            flat_map_collect(insert(
+                args.clone(),
+                vec![
+                    CliOption::new("format", ["--format", "json:full"]),
+                    CliOption::new("image", ["/dev/null"]),
+                ],
+            )),
+        ];
 
-        for arg in pvimg_valid_args {
-            let res = CliOptions::try_parse_from(&arg);
-            #[allow(clippy::use_debug, clippy::print_stdout)]
-            if let Err(e) = &res {
-                println!("arg: {arg:?}");
-                println!("{e}");
-            }
-            assert!(res.is_ok());
-        }
+        let test_cases = [
+            (
+                &invalid_value[..],
+                clap::error::ErrorKind::InvalidValue,
+                "InvalidValue",
+            ),
+            (
+                &invalid_conflict[..],
+                clap::error::ErrorKind::ArgumentConflict,
+                "ArgumentConflict",
+            ),
+            (
+                &invalid_format[..],
+                clap::error::ErrorKind::ValueValidation,
+                "ValueValidation",
+            ),
+        ];
 
-        for arg in pvimg_invalid_args {
-            let res = CliOptions::try_parse_from(&arg);
-            assert!(res.is_err());
-        }
+        let parse_pvimg = |args: &[&str]| CliOptions::try_parse_from(args);
+        test_valid_args(
+            pvimg_valid_args,
+            &parse_pvimg as &dyn Fn(&[&str]) -> Result<CliOptions, clap::Error>,
+            "pvimg info",
+        );
+        test_invalid_args(
+            &test_cases,
+            &["pvimg", "info"],
+            &parse_pvimg as &dyn Fn(&[&str]) -> Result<CliOptions, clap::Error>,
+            "pvimg info",
+        );
+    }
+
+    #[test]
+    fn test_hdr_version_conversions() {
+        assert_eq!(HkdVersion::from(HdrVersion::V1), HkdVersion::Classical);
+        assert_eq!(HkdVersion::from(HdrVersion::V2), HkdVersion::Hybrid);
+    }
+
+    #[test]
+    fn test_output_format_kind_display() {
+        assert_eq!(OutputFormatKind::Text.to_string(), "human-readable");
+        assert_eq!(OutputFormatKind::Json.to_string(), "JSON");
+    }
+
+    #[test]
+    fn test_output_format_kind_from_str() {
+        assert_eq!(
+            "text".parse::<OutputFormatKind>().unwrap(),
+            OutputFormatKind::Text
+        );
+        assert_eq!(
+            "json".parse::<OutputFormatKind>().unwrap(),
+            OutputFormatKind::Json
+        );
+        assert!("invalid".parse::<OutputFormatKind>().is_err());
+    }
+
+    #[test]
+    fn test_new_version_cmd_opts() {
+        let opts = CliOptions::new_version_cmd_opts();
+        assert!(opts.version);
+        assert!(matches!(opts.cmd, SubCommands::Version));
+    }
+
+    #[test]
+    fn test_genprotimg_to_cli_options_conversion() {
+        let genprotimg_opts = GenprotimgCliOptions {
+            args: Box::new(CreateBootImageArgs::default()),
+            verbose: DeprecatedVerbosityOptions::default(),
+            version: (),
+            help_all: (),
+            help_experimental: (),
+        };
+        let cli_opts: CliOptions = genprotimg_opts.into();
+        assert!(!cli_opts.version);
+        assert!(matches!(cli_opts.cmd, SubCommands::Create(_)));
+    }
+
+    #[test]
+    fn test_se_hdr_flag_name_display() {
+        assert_eq!(
+            SeHdrFlagName::ConfidentialDump.to_string(),
+            "confidential-dump"
+        );
+        assert_eq!(SeHdrFlagName::PckmoDeaTdea.to_string(), "pckmo-dea-tdea");
+        assert_eq!(SeHdrFlagName::PckmoAes.to_string(), "pckmo-aes");
+        assert_eq!(SeHdrFlagName::PckmoEcc.to_string(), "pckmo-ecc");
+        assert_eq!(SeHdrFlagName::PckmoHmac.to_string(), "pckmo-hmac");
+        assert_eq!(
+            SeHdrFlagName::BackupTargetKeys.to_string(),
+            "backup-target-keys"
+        );
+        assert_eq!(
+            SeHdrFlagName::CckExtensionSecretEnforcement.to_string(),
+            "cck-extension-secret-enforcement"
+        );
+        assert_eq!(SeHdrFlagName::CckUpdate.to_string(), "cck-update");
+        assert_eq!(
+            SeHdrFlagName::NoComponentEncryption.to_string(),
+            "no-component-encryption"
+        );
     }
 
     #[test]

rust/pvimg/src/cmd.rs

@@ -8,7 +8,7 @@ mod info;
 mod test;
 mod version;
 
-pub const CMD_FN: &[&str] = &["+create", "+test", "+info"];
+pub const CMD_FN: &[&str] = &["+create", "+test", "+info", "+quantumsafe"];
 
 pub use create::create;
 pub use info::info;

rust/pvimg/src/cmd/create.rs

@@ -5,18 +5,21 @@
 use std::fs::OpenOptions;
 use std::io::BufReader;
 
-use anyhow::{Context, Result};
-use log::{debug, warn};
+use anyhow::{anyhow, Context, Result};
+use log::{debug, info, warn};
 use pv::misc::{open_file, try_parse_u64};
+use pv::request::HostKey;
 use pvimg::error::OwnExitCode;
 use pvimg::secured_comp::ComponentTrait;
 use pvimg::uvdata::{
-    ControlFlagTrait, ControlFlagsTrait, FlagData, PcfV1, PlaintextControlFlagsV1, ScfV1,
-    SeHdrDataV1, SecretControlFlagsV1,
+    EffectiveControlFlags, FlagState, FlagsOverride, SeHdrControlFlags, SeHdrControlFlagsModel,
+    SeHdrDataV1, SeHdrDataV2, SeHdrFlag, SeHdrVersion, SeTarget,
 };
 use utils::{AtomicFile, AtomicFileOperation};
 
-use crate::cli::{ComponentPaths, CreateBootImageArgs};
+use crate::cli::{
+    ComponentPaths, CreateBootImageArgs, HdrVersion, HdrVersionSelection, SeHdrFlagName,
+};
 use crate::cmd::common::read_user_provided_keys;
 use crate::se_img::{SeHdrArgs, SeImgBuilder};
 use crate::se_img_comps::cmdline::Cmdline;
@@ -24,6 +27,21 @@ use crate::se_img_comps::kernel::S390Kernel;
 use crate::se_img_comps::ramdisk::Ramdisk;
 use crate::se_img_comps::{check_components, Component};
 
+/// Convert CLI flag name to internal SeHdrFlag
+fn convert_flag_name(name: SeHdrFlagName) -> SeHdrFlag {
+    match name {
+        SeHdrFlagName::ConfidentialDump => SeHdrFlag::ConfidentialDump,
+        SeHdrFlagName::PckmoDeaTdea => SeHdrFlag::PckmoDeaTdea,
+        SeHdrFlagName::PckmoAes => SeHdrFlag::PckmoAes,
+        SeHdrFlagName::PckmoEcc => SeHdrFlag::PckmoEcc,
+        SeHdrFlagName::PckmoHmac => SeHdrFlag::PckmoHmac,
+        SeHdrFlagName::BackupTargetKeys => SeHdrFlag::BackupTargetKeys,
+        SeHdrFlagName::CckExtensionSecretEnforcement => SeHdrFlag::CckExtensionSecretEnforcement,
+        SeHdrFlagName::CckUpdate => SeHdrFlag::CckUpdate,
+        SeHdrFlagName::NoComponentEncryption => SeHdrFlag::NoComponentEncryption,
+    }
+}
+
 /// The returned vector is sorted by the occurrence in the memory layout:
 /// First the kernel, then the ramdisk and then the kernel cmdline.
 ///
@@ -43,91 +61,272 @@ fn components(component_args: &ComponentPaths) -> Result<Vec<Component>> {
     Ok(components)
 }
 
-fn parse_flags(
-    args: &CreateBootImageArgs,
-) -> Result<(PlaintextControlFlagsV1, SecretControlFlagsV1)> {
-    let lf = &args.legacy_flags;
+/// Parse new-style flags (--flags and --disable-flags)
+fn parse_new_style_flags(
+    flags: &[SeHdrFlagName],
+    disable_flags: &[SeHdrFlagName],
+    version: SeHdrVersion,
+) -> Result<(FlagsOverride<SeHdrFlag>, FlagsOverride<SeHdrFlag>)> {
+    let target = SeTarget::from_se_hdr_version(version);
+    let mut pcf_overrides: FlagsOverride<SeHdrFlag> = FlagsOverride::new();
+    let mut scf_overrides: FlagsOverride<SeHdrFlag> = FlagsOverride::new();
+
+    if flags.is_empty() && disable_flags.is_empty() {
+        return Ok((pcf_overrides, scf_overrides));
+    }
+
+    let pcf_model = SeHdrControlFlagsModel::pcf_for_target(target);
+    let scf_model = SeHdrControlFlagsModel::scf_for_target(target);
+    let pcf_supported = pcf_model.supported_flags();
+    let scf_supported = scf_model.supported_flags();
+
+    // Helper function to process flags
+    let mut process_flags =
+        |flag_list: &[SeHdrFlagName], enable: bool, flag_type: &str| -> Result<()> {
+            if flag_list.is_empty() {
+                return Ok(());
+            }
+
+            let converted_flags: Vec<SeHdrFlag> =
+                flag_list.iter().map(|&f| convert_flag_name(f)).collect();
+
+            for flag in &converted_flags {
+                if pcf_supported.contains(flag) {
+                    if enable {
+                        pcf_overrides.enable(*flag);
+                    } else {
+                        pcf_overrides.disable(*flag);
+                    }
+                }
+                if scf_supported.contains(flag) {
+                    if enable {
+                        scf_overrides.enable(*flag);
+                    } else {
+                        scf_overrides.disable(*flag);
+                    }
+                }
+            }
+
+            // Check if all flags were consumed (supported by either pcf or scf)
+            let unsupported_flags: Vec<&SeHdrFlag> = converted_flags
+                .iter()
+                .filter(|flag| !pcf_supported.contains(flag) && !scf_supported.contains(flag))
+                .collect();
+
+            if !unsupported_flags.is_empty() {
+                return Err(anyhow!(
+                    "The following {} are not supported for SE header version {:?}: {:?}",
+                    flag_type,
+                    version,
+                    unsupported_flags
+                ));
+            }
+
+            Ok(())
+        };
+
+    process_flags(flags, true, "flags")?;
+    process_flags(disable_flags, false, "disable flags")?;
+
+    Ok((pcf_overrides, scf_overrides))
+}
+
+/// Parse legacy-style flags
+fn parse_legacy_flags(
+    legacy_flags: &crate::cli::CreateBootImageLegacyFlags,
+) -> (FlagsOverride<SeHdrFlag>, FlagsOverride<SeHdrFlag>) {
     macro_rules! flag_disabled {
         ($cli_flag:expr, $control_flags:expr) => {
-            $cli_flag
-                .filter(|x| *x)
-                .and(Some(ControlFlagTrait::all_disabled($control_flags)))
+            $cli_flag.filter(|x| *x).map(|_| {
+                let mut flags = FlagsOverride::new();
+                flags.disable_all($control_flags);
+                flags
+            })
         };
     }
     macro_rules! flag_enabled {
         ($cli_flag:expr, $control_flags:expr) => {
-            $cli_flag
-                .filter(|x| *x)
-                .and(Some(ControlFlagTrait::all_enabled($control_flags)))
+            $cli_flag.filter(|x| *x).map(|_| {
+                let mut flags = FlagsOverride::new();
+                flags.enable_all($control_flags);
+                flags
+            })
         };
     }
 
-    let plaintext_flags: Vec<FlagData<PcfV1>> = [
-        flag_disabled!(lf.disable_dump, [PcfV1::AllowDumping]),
-        flag_enabled!(lf.enable_dump, [PcfV1::AllowDumping]),
-        flag_disabled!(lf.disable_pckmo, PlaintextControlFlagsV1::PCKMO),
-        flag_enabled!(lf.enable_pckmo, PlaintextControlFlagsV1::PCKMO),
-        flag_disabled!(lf.disable_pckmo_hmac, [PcfV1::PckmoHmac]),
-        flag_enabled!(lf.enable_pckmo_hmac, [PcfV1::PckmoHmac]),
-        flag_disabled!(lf.disable_backup_keys, [PcfV1::BackupTargetKeys]),
-        flag_enabled!(lf.enable_backup_keys, [PcfV1::BackupTargetKeys]),
-        flag_enabled!(lf.disable_image_encryption, [PcfV1::NoComponentEncryption]),
-        flag_disabled!(lf.enable_image_encryption, [PcfV1::NoComponentEncryption]),
-    ]
-    .into_iter()
-    .flatten()
-    .flatten()
-    .collect();
-    // This is ensured by Clap's `conflicts_with`.
-    assert!(PlaintextControlFlagsV1::no_duplicates(&plaintext_flags));
-
-    let secret_flags: Vec<FlagData<ScfV1>> = [
+    let pcf_overrides = [
+        flag_disabled!(legacy_flags.disable_dump, [SeHdrFlag::ConfidentialDump]),
+        flag_enabled!(legacy_flags.enable_dump, [SeHdrFlag::ConfidentialDump]),
+        flag_disabled!(legacy_flags.disable_pckmo, SeHdrControlFlagsModel::PCKMO),
+        flag_enabled!(legacy_flags.enable_pckmo, SeHdrControlFlagsModel::PCKMO),
+        flag_disabled!(legacy_flags.disable_pckmo_hmac, [SeHdrFlag::PckmoHmac]),
+        flag_enabled!(legacy_flags.enable_pckmo_hmac, [SeHdrFlag::PckmoHmac]),
         flag_disabled!(
-            lf.disable_cck_extension_secret,
-            [ScfV1::CckExtensionSecretEnforcement]
+            legacy_flags.disable_backup_keys,
+            [SeHdrFlag::BackupTargetKeys]
         ),
         flag_enabled!(
-            lf.enable_cck_extension_secret,
-            [ScfV1::CckExtensionSecretEnforcement]
+            legacy_flags.enable_backup_keys,
+            [SeHdrFlag::BackupTargetKeys]
+        ),
+        flag_enabled!(
+            legacy_flags.disable_image_encryption,
+            [SeHdrFlag::NoComponentEncryption]
+        ),
+        flag_disabled!(
+            legacy_flags.enable_image_encryption,
+            [SeHdrFlag::NoComponentEncryption]
         ),
-        flag_disabled!(lf.disable_cck_update, [ScfV1::CckUpdateAllowed]),
-        flag_enabled!(lf.enable_cck_update, [ScfV1::CckUpdateAllowed]),
     ]
     .into_iter()
     .flatten()
+    .fold(FlagsOverride::new(), |mut acc, override_set| {
+        for (flag, state) in override_set.iter() {
+            match state {
+                FlagState::Enabled => acc.enable(*flag),
+                FlagState::Disabled => acc.disable(*flag),
+            }
+        }
+        acc
+    });
+
+    let scf_overrides = [
+        flag_disabled!(
+            legacy_flags.disable_cck_extension_secret,
+            [SeHdrFlag::CckExtensionSecretEnforcement]
+        ),
+        flag_enabled!(
+            legacy_flags.enable_cck_extension_secret,
+            [SeHdrFlag::CckExtensionSecretEnforcement]
+        ),
+        flag_disabled!(legacy_flags.disable_cck_update, [SeHdrFlag::CckUpdate]),
+        flag_enabled!(legacy_flags.enable_cck_update, [SeHdrFlag::CckUpdate]),
+    ]
+    .into_iter()
     .flatten()
-    .collect();
-    // This is ensured by Clap's `conflicts_with`.
-    assert!(SecretControlFlagsV1::no_duplicates(&secret_flags));
+    .fold(FlagsOverride::new(), |mut acc, override_set| {
+        for (flag, state) in override_set.iter() {
+            match state {
+                FlagState::Enabled => acc.enable(*flag),
+                FlagState::Disabled => acc.disable(*flag),
+            }
+        }
+        acc
+    });
 
-    let mut pcf: PlaintextControlFlagsV1 = match &args.experimental_args.x_pcf {
-        Some(v) => try_parse_u64(v, "x-pcf")?.into(),
-        None => PlaintextControlFlagsV1::default(),
-    };
-    pcf.parse_flags(&plaintext_flags);
-    debug!("Using plaintext flags: {pcf:#x}");
+    (pcf_overrides, scf_overrides)
+}
 
-    let mut scf: SecretControlFlagsV1 = match &args.experimental_args.x_scf {
-        Some(v) => try_parse_u64(v, "x-scf")?.into(),
-        None => SecretControlFlagsV1::default(),
+/// Apply experimental overrides to control flags
+fn apply_experimental_overrides(
+    pcf_overrides: &FlagsOverride<SeHdrFlag>,
+    scf_overrides: &FlagsOverride<SeHdrFlag>,
+    x_pcf: &Option<String>,
+    x_scf: &Option<String>,
+    target: SeTarget,
+) -> Result<(
+    EffectiveControlFlags<SeHdrFlag>,
+    EffectiveControlFlags<SeHdrFlag>,
+)> {
+    let pcf = match x_pcf {
+        Some(v) => {
+            assert_eq!(pcf_overrides.len(), 0);
+            SeHdrControlFlags::from_u64(try_parse_u64(v, "x-pcf")?, target, true)
+        }
+        None => SeHdrControlFlagsModel::pcf_for_target(target).with_overrides(pcf_overrides)?,
+    };
+
+    let scf = match x_scf {
+        Some(v) => {
+            assert_eq!(scf_overrides.len(), 0);
+            SeHdrControlFlags::from_u64(try_parse_u64(v, "x-scf")?, target, false)
+        }
+        None => SeHdrControlFlagsModel::scf_for_target(target).with_overrides(scf_overrides)?,
     };
-    scf.parse_flags(&secret_flags);
-    debug!("Using secret flags:    {scf:#x}");
 
     Ok((pcf, scf))
 }
 
+fn parse_flags(
+    args: &CreateBootImageArgs,
+    version: SeHdrVersion,
+) -> Result<(
+    EffectiveControlFlags<SeHdrFlag>,
+    EffectiveControlFlags<SeHdrFlag>,
+)> {
+    let target = SeTarget::from_se_hdr_version(version);
+
+    // Legacy flags and --(disable-)flags are mutually exclusive. Clap semantics
+    // is used for that.
+    let (pcf_overrides, scf_overrides) = if args.flags.is_empty() && args.disable_flags.is_empty() {
+        parse_legacy_flags(&args.legacy_flags)
+    } else {
+        parse_new_style_flags(&args.flags, &args.disable_flags, version)?
+    };
+
+    let (pcf, scf) = apply_experimental_overrides(
+        &pcf_overrides,
+        &scf_overrides,
+        &args.experimental_args.x_pcf,
+        &args.experimental_args.x_scf,
+        target,
+    )?;
+    info!("Using plaintext flags:\n{pcf}");
+    info!("Using secret flags:\n{scf}");
+
+    Ok((pcf, scf))
+}
+
+/// Auto-detect the SE header version based on the host keys.
+///
+/// Returns V2 if any host key is a hybrid key, otherwise returns V1.
+fn auto_detect_version(host_keys: &[HostKey]) -> SeHdrVersion {
+    let use_hybrid_keys = host_keys.iter().any(|k: &HostKey| k.is_hybrid());
+    if use_hybrid_keys {
+        SeHdrVersion::V2
+    } else {
+        SeHdrVersion::V1
+    }
+}
+
+impl From<HdrVersion> for SeHdrVersion {
+    fn from(value: HdrVersion) -> Self {
+        match value {
+            HdrVersion::V1 => Self::V1,
+            HdrVersion::V2 => Self::V2,
+        }
+    }
+}
+
+/// Determine the SE header version to use.
+///
+/// If an explicit version is provided via CLI, use that.
+/// Otherwise, auto-detect based on the host key types.
+fn determine_version(cli_version: HdrVersionSelection, host_keys: &[HostKey]) -> SeHdrVersion {
+    match cli_version {
+        HdrVersionSelection::Auto => auto_detect_version(host_keys),
+        HdrVersionSelection::Explicit(hdr_version) => hdr_version.into(),
+    }
+}
+
 /// Create a Secure Execution boot image
 pub fn create(opt: &CreateBootImageArgs) -> Result<OwnExitCode> {
     // Verify host key documents first, because if they are not valid there is
     // no reason to continue.
-    let verified_host_keys = opt
-        .certificate_args
-        .get_verified_hkds("Secure Execution image")?;
-    let user_provided_keys = read_user_provided_keys(&opt.keys)?;
-    let (plaintext_flags, secret_flags) = parse_flags(opt)?;
+    let verified_host_keys = opt.certificate_args.get_verified_hkds(
+        "Secure Execution image",
+        HdrVersionSelection::Explicit(opt.hdr_version).map(|v| v.into()),
+    )?;
 
-    if plaintext_flags.is_set(PcfV1::NoComponentEncryption) {
+    let version = determine_version(
+        HdrVersionSelection::Explicit(opt.hdr_version),
+        &verified_host_keys,
+    );
+
+    let user_provided_keys = read_user_provided_keys(&opt.keys)?;
+    let (plaintext_flags, secret_flags) = parse_flags(opt, version)?;
+
+    if plaintext_flags.has(SeHdrFlag::NoComponentEncryption) {
         warn!("The components encryption is disabled, make sure that the components do not contain any confidential content.");
     }
 
@@ -140,11 +339,15 @@ pub fn create(opt: &CreateBootImageArgs) -> Result<OwnExitCode> {
 
     // FIXME get rid of the legacy mode. But that's only possible as soon as all
     // available tools are updated.
-    let expected_se_hdr_size = SeHdrDataV1::expected_size(verified_host_keys.len())?;
+    let expected_se_hdr_size = match version {
+        SeHdrVersion::V1 => SeHdrDataV1::expected_size(verified_host_keys.len())?,
+        SeHdrVersion::V2 => SeHdrDataV2::expected_size(verified_host_keys.len())?,
+        _ => return Err(anyhow!("Unsupported SE header version: {:?}", version)),
+    };
     let mut writer = AtomicFile::with_extension(&opt.output, "part", &mut OpenOptions::new())?;
-    let mut seimg_ctx = SeImgBuilder::new_v1(
+    let mut seimg_ctx = SeImgBuilder::new(
         &mut writer,
-        plaintext_flags.is_unset(PcfV1::NoComponentEncryption),
+        !plaintext_flags.has(SeHdrFlag::NoComponentEncryption),
         Some(expected_se_hdr_size),
         opt.experimental_args.x_bootloader_directory.as_ref(),
     )?;
@@ -218,13 +421,135 @@ mod test {
             },
             ..Default::default()
         };
-        let parsed_flags = super::parse_flags(&args).expect("Failed to parse flags {args:?}");
-        let mut exp_pcf = Vec::from(PlaintextControlFlagsV1::PCKMO);
-        exp_pcf.push(PcfV1::AllowDumping);
-        let pcf = PlaintextControlFlagsV1::from_flags(PcfV1::all_enabled(exp_pcf));
-        assert_eq!(parsed_flags.0, pcf);
-        let exp_scf = vec![ScfV1::CckUpdateAllowed];
-        let scf = SecretControlFlagsV1::from_flags(ScfV1::all_enabled(exp_scf));
-        assert_eq!(parsed_flags.1, scf);
+        let parsed_flags =
+            super::parse_flags(&args, SeHdrVersion::V1).expect("Failed to parse flags {args:?}");
+
+        // Build expected PCF
+        let mut exp_pcf = Vec::from(SeHdrControlFlagsModel::PCKMO);
+        exp_pcf.push(SeHdrFlag::ConfidentialDump);
+        let mut pcf_overrides = FlagsOverride::new();
+        for flag in &exp_pcf {
+            pcf_overrides.enable(*flag);
+        }
+        let expected_pcf = SeHdrControlFlagsModel::pcf_for_target(SeTarget::V1Max)
+            .with_overrides(&pcf_overrides)
+            .expect("Failed to create expected PCF");
+        assert_eq!(parsed_flags.0, expected_pcf);
+
+        // Build expected SCF
+        let exp_scf = vec![SeHdrFlag::CckUpdate];
+        let mut scf_overrides = FlagsOverride::new();
+        for flag in &exp_scf {
+            scf_overrides.enable(*flag);
+        }
+        let expected_scf = SeHdrControlFlagsModel::scf_for_target(SeTarget::V1Max)
+            .with_overrides(&scf_overrides)
+            .expect("Failed to create expected SCF");
+        assert_eq!(parsed_flags.1, expected_scf);
+    }
+
+    #[test]
+    fn test_auto_detect_version_v1() {
+        // Mock non-hybrid keys - should return V1
+        // Note: This is a simplified test. In real usage, you'd need actual HostKey instances
+        let keys: Vec<HostKey> = vec![];
+        let version = auto_detect_version(&keys);
+        assert_eq!(version, SeHdrVersion::V1);
+    }
+
+    #[test]
+    fn test_determine_version_explicit_v1() {
+        let keys: Vec<HostKey> = vec![];
+        let version = determine_version(HdrVersionSelection::Explicit(HdrVersion::V1), &keys);
+        assert_eq!(version, SeHdrVersion::V1);
+    }
+
+    #[test]
+    fn test_determine_version_explicit_v2() {
+        let keys: Vec<HostKey> = vec![];
+        let version = determine_version(HdrVersionSelection::Explicit(HdrVersion::V2), &keys);
+        assert_eq!(version, SeHdrVersion::V2);
+    }
+
+    #[test]
+    fn test_determine_version_auto_detect() {
+        let keys: Vec<HostKey> = vec![];
+        let version = determine_version(HdrVersionSelection::Auto, &keys);
+        // With empty keys, should default to V1
+        assert_eq!(version, SeHdrVersion::V1);
+    }
+
+    #[test]
+    fn parse_flags_with_disable_flags_no_conflict() {
+        let args = CreateBootImageArgs {
+            flags: vec![SeHdrFlagName::ConfidentialDump],
+            disable_flags: vec![SeHdrFlagName::PckmoHmac],
+            ..Default::default()
+        };
+        let result = super::parse_flags(&args, SeHdrVersion::V1);
+        assert!(result.is_ok());
+
+        let (pcf, scf) = result.unwrap();
+        // ConfidentialDump should be enabled
+        assert!(pcf.has(SeHdrFlag::ConfidentialDump));
+        // PckmoHmac should be disabled
+        assert!(!pcf.has(SeHdrFlag::PckmoHmac));
+        assert_eq!(pcf.to_u64(), 0b100000000000000000000011100000_u64);
+        assert_eq!(scf.to_u64(), 0b0_u64);
+    }
+
+    #[test]
+    fn parse_flags_with_multiple_disable_flags() {
+        let args = CreateBootImageArgs {
+            disable_flags: vec![SeHdrFlagName::PckmoHmac, SeHdrFlagName::BackupTargetKeys],
+            ..Default::default()
+        };
+        let result = super::parse_flags(&args, SeHdrVersion::V1);
+        assert!(result.is_ok());
+
+        let (pcf, _scf) = result.unwrap();
+        // Both flags should be disabled
+        assert!(!pcf.has(SeHdrFlag::PckmoHmac));
+        assert!(!pcf.has(SeHdrFlag::BackupTargetKeys));
+    }
+
+    #[test]
+    fn parse_flags_with_only_disable_flags() {
+        let args = CreateBootImageArgs {
+            disable_flags: vec![SeHdrFlagName::PckmoDeaTdea, SeHdrFlagName::PckmoAes],
+            ..Default::default()
+        };
+        let result = super::parse_flags(&args, SeHdrVersion::V1);
+        assert!(result.is_ok());
+
+        let (pcf, _scf) = result.unwrap();
+        // PCKMO DEA/TDEA and AES should be disabled
+        assert!(!pcf.has(SeHdrFlag::PckmoDeaTdea));
+        assert!(!pcf.has(SeHdrFlag::PckmoAes));
+    }
+
+    #[test]
+    fn parse_flags_enable_and_disable_different_flags() {
+        let args = CreateBootImageArgs {
+            flags: vec![
+                SeHdrFlagName::ConfidentialDump,
+                SeHdrFlagName::BackupTargetKeys,
+            ],
+            disable_flags: vec![
+                SeHdrFlagName::PckmoHmac,
+                SeHdrFlagName::NoComponentEncryption,
+            ],
+            ..Default::default()
+        };
+        let result = super::parse_flags(&args, SeHdrVersion::V1);
+        assert!(result.is_ok());
+
+        let (pcf, _scf) = result.unwrap();
+        // Enabled flags should be set
+        assert!(pcf.has(SeHdrFlag::ConfidentialDump));
+        assert!(pcf.has(SeHdrFlag::BackupTargetKeys));
+        // Disabled flags should not be set
+        assert!(!pcf.has(SeHdrFlag::PckmoHmac));
+        assert!(!pcf.has(SeHdrFlag::NoComponentEncryption));
     }
 }

rust/pvimg/src/cmd/test.rs

@@ -6,10 +6,12 @@ use std::path::Path;
 
 use anyhow::Result;
 use log::{info, warn};
-use pv::misc::{open_file, read_certs, read_file};
+use pv::misc::open_file;
+use pv::request::NoVerifyHkd;
 use pv::{FileAccessErrorType, PvCoreError};
-use pvimg::error::{Error, OwnExitCode, PvError};
+use pvimg::error::{Error, OwnExitCode};
 use pvimg::uvdata::{KeyExchangeTrait, SeHdr, UvKeyHashesV1};
+use utils::hkd::{HkdLoader, HkdVersionSelection};
 use utils::HexSlice;
 
 use crate::cli::TestArgs;
@@ -31,32 +33,25 @@ fn hdr_test_target_hashes(hdr: &SeHdr, key_hashes: &Path) -> Result<bool> {
         err => Error::PvCore(err),
     })?;
     let hashes = UvKeyHashesV1::read_from_io(file)?;
-    let mut contains = hdr.contains_hash(&hashes.pchkh);
-    if contains {
-        log_println!(
-            " ✓ Host key hash {:#} is included",
-            HexSlice::from(&hashes.pchkh)
-        );
-    }
-    if hdr.contains_hash(&hashes.pbhkh) {
-        log_println!(
-            " ✓ Backup host key hash {:#} is included",
-            HexSlice::from(&hashes.pbhkh)
-        );
-        contains = true;
-    };
-
-    for hash in hashes.res {
-        if hdr.contains_hash(&hash) {
-            log_println!(" ✓ Key hash {:#} is included", HexSlice::from(&hash));
-            contains = true;
-        }
-    }
-
-    if !contains {
+    let matches = hashes.matching_hashes(hdr);
+    if matches.is_empty() {
         warn!(" ✘ None of the key hashes is included");
+        Ok(false)
+    } else {
+        for m in matches {
+            match m.idx.kind() {
+                Some(kind) => {
+                    log_println!(" ✓ {kind} {:#} is included", HexSlice::from(&m.hash))
+                }
+                None => log_println!(
+                    " ✓ Key hash {:#} is included (zero-based index {})",
+                    HexSlice::from(&m.hash),
+                    m.idx.index()
+                ),
+            }
+        }
+        Ok(true)
     }
-    Ok(contains)
 }
 
 /// Returns `Ok(true)` if at least one of the given public key of the host key
@@ -72,27 +67,21 @@ where
 
     let mut result = false;
     for path in host_key_documents {
-        let hkd_path = path.as_ref();
-        let hkd_data = read_file(hkd_path, "host key document")?;
-        let certs = read_certs(&hkd_data)?;
-        if certs.is_empty() {
-            return Err(PvError::NoHkdInFile(hkd_path.display().to_string()).into());
-        }
-
-        if certs.len() != 1 {
-            warn!("The host key document in '{}' contains more than one certificate! Only the first certificate will be used.",
-                  hkd_path.display());
-        }
-
-        // Panic: len is == 1 -> unwrap will succeed/not panic
-        let cert = certs.first().unwrap();
-        if hdr.contains(cert.public_key()?)? {
+        let hkd = HkdLoader::load_and_verify(
+            path,
+            &NoVerifyHkd,
+            HkdVersionSelection::Explicit(hdr.common.version.into()),
+        )?;
+        if hdr.contains(hkd)? {
             result = true;
-            log_println!(" ✓ Host key document '{}' is included", hkd_path.display());
+            log_println!(
+                " ✓ Host key document '{}' is included",
+                path.as_ref().display()
+            );
         } else {
             log_println!(
                 " ✘ Host key document '{}' is not included",
-                hkd_path.display()
+                path.as_ref().display()
             );
         }
     }

rust/pvimg/src/lib.rs

@@ -36,11 +36,12 @@ pub mod misc {
 
 pub mod uvdata {
     pub use crate::pv_utils::{
-        AeadPlainDataTrait, BuilderTrait, ComponentMetadataV1, ControlFlagTrait, ControlFlagsTrait,
-        EnvelopeSeHdrV1, FlagData, KeyExchangeTrait, PcfV1, PlaintextControlFlagsV1, ScfV1, SeH,
-        SeHdr, SeHdrAadV1, SeHdrBinV1, SeHdrBuilder, SeHdrData, SeHdrDataV1, SeHdrPlain,
-        SeHdrVersion, SeHdrVersioned, SecretControlFlagsV1, UvDataPlainTrait, UvDataTrait,
-        UvKeyHashesV1,
+        AeadPlainDataTrait, BuilderTrait, ComponentMetadataV1, ControlFlagTrait,
+        EffectiveControlFlags, EnvelopeSeHdrV1, FlagData, FlagState, FlagsOverride,
+        IntoEnumIterator, KeyExchangeTrait, SeH, SeHdr, SeHdrAadV1, SeHdrBinV1, SeHdrBuilder,
+        SeHdrControlFlags, SeHdrControlFlagsModel, SeHdrData, SeHdrDataV1, SeHdrDataV2, SeHdrFlag,
+        SeHdrPlain, SeHdrVersion, SeHdrVersioned, SeTarget, UnknownFlags, UvDataPlainTrait,
+        UvDataTrait, UvKeyHashesV1,
     };
 }
 

rust/pvimg/src/pv_utils.rs

@@ -18,9 +18,10 @@ pub use layout::{Interval, Layout};
 pub use misc::{round_up, try_copy_slice_to_array};
 pub use psw::{ShortPsw, PSW, PSW_MASK_BA, PSW_MASK_EA};
 pub use se_hdr::{
-    ComponentMetadataV1, ControlFlagTrait, ControlFlagsTrait, EnvelopeSeHdrV1, FlagData, PcfV1,
-    PlaintextControlFlagsV1, ScfV1, SeH, SeHdr, SeHdrAadV1, SeHdrBinV1, SeHdrBuilder, SeHdrData,
-    SeHdrDataV1, SeHdrPlain, SeHdrVersion, SeHdrVersioned, SecretControlFlagsV1,
+    ComponentMetadataV1, ControlFlagTrait, EffectiveControlFlags, EnvelopeSeHdrV1, FlagData,
+    FlagState, FlagsOverride, IntoEnumIterator, SeH, SeHdr, SeHdrAadV1, SeHdrBinV1, SeHdrBuilder,
+    SeHdrControlFlags, SeHdrControlFlagsModel, SeHdrData, SeHdrDataV1, SeHdrDataV2, SeHdrFlag,
+    SeHdrPlain, SeHdrVersion, SeHdrVersioned, SeTarget, UnknownFlags,
 };
 pub use secured_comp::{ComponentTrait, SecuredComponent, SecuredComponentBuilder};
 pub use serializing::{bytesize, serialize_to_bytes};

rust/pvimg/src/pv_utils/error.rs

@@ -126,6 +126,12 @@ pub enum Error {
         max_output_size: usize,
     },
 
+    #[error("Operation {operation} not supported")]
+    UnsupportedOperation { operation: String },
+
+    #[error("Unsupported SE header version: {0:?}")]
+    UnsupportedSeHdrVersion(pv::request::SeHdrVersion),
+
     // Errors from other crates
     #[error(transparent)]
     Deku(#[from] deku::DekuError),

rust/pvimg/src/pv_utils/se_hdr.rs

@@ -5,16 +5,19 @@
 mod brb;
 mod builder;
 mod flags;
+mod generic_flags;
 mod hdr_v1;
+mod hdr_v2;
 mod keys;
 
 pub use brb::{
-    ComponentMetadata, ComponentMetadataV1, EnvelopeSeHdrV1, SeH, SeHdr, SeHdrBinV1, SeHdrData,
-    SeHdrDataV1, SeHdrPlain, SeHdrVersion, SeHdrVersioned,
+    ComponentMetadata, ComponentMetadataV1, EnvelopeSeHdrV1, SeH, SeHdr, SeHdrBinV1, SeHdrBinV2,
+    SeHdrData, SeHdrDataV1, SeHdrDataV2, SeHdrPlain, SeHdrVersion, SeHdrVersioned,
 };
 pub use builder::SeHdrBuilder;
 pub use flags::{
-    ControlFlagTrait, ControlFlagsTrait, FlagData, PcfV1, PlaintextControlFlagsV1, ScfV1,
-    SecretControlFlagsV1,
+    ControlFlagTrait, EffectiveControlFlags, FlagData, FlagState, FlagsOverride, SeHdrControlFlags,
+    SeHdrControlFlagsModel, SeHdrFlag, SeTarget,
 };
+pub use generic_flags::{IntoEnumIterator, UnknownFlags};
 pub use hdr_v1::SeHdrAadV1;

rust/pvimg/src/pv_utils/se_hdr/brb.rs

@@ -8,14 +8,15 @@ use std::mem::size_of;
 use deku::ctx::Endian;
 use deku::prelude::*;
 use enum_dispatch::enum_dispatch;
-use pv::request::openssl::pkey::{PKey, PKeyRef, Private, Public};
+use pv::request::openssl::pkey::{PKey, Private, Public};
 use pv::request::{seek_se_hdr_start, Aes256XtsKey, Confidential, SymKey, SymKeyType};
 use pv::static_assert;
 use serde::{Deserialize, Serialize};
-use utils::S390ToolsMetaData;
+use utils::{HkdVersion, S390ToolsMetaData};
 
 pub use super::hdr_v1::{SeHdrBinV1, SeHdrDataV1};
-use super::{PlaintextControlFlagsV1, SecretControlFlagsV1};
+pub use super::hdr_v2::{SeHdrBinV2, SeHdrDataV2};
+use super::{EffectiveControlFlags, SeHdrFlag};
 use crate::misc::PAGESIZE;
 use crate::pv_utils::error::{Error, Result};
 use crate::pv_utils::misc::display_indented;
@@ -60,6 +61,17 @@ impl EnvelopeSeHdrV1 {
 pub enum SeHdrVersion {
     /// Secure Execution header v1
     V1 = 0x100,
+    /// Secure Execution header v2
+    V2 = 0x200,
+}
+
+impl From<SeHdrVersion> for HkdVersion {
+    fn from(val: SeHdrVersion) -> Self {
+        match val {
+            SeHdrVersion::V1 => Self::Classical,
+            SeHdrVersion::V2 => Self::Hybrid,
+        }
+    }
 }
 
 impl Display for SeHdrVersion {
@@ -69,6 +81,7 @@ impl Display for SeHdrVersion {
             "{}",
             match self {
                 SeHdrVersion::V1 => "1",
+                SeHdrVersion::V2 => "2",
             }
         )
     }
@@ -204,13 +217,53 @@ impl Display for SeHdrPlain {
     }
 }
 
-#[enum_dispatch(AeadCipherTrait, AeadDataTrait, KeyExchangeTrait)]
+#[non_exhaustive]
+#[enum_dispatch(AeadCipherTrait, AeadDataTrait)]
 #[derive(Clone, PartialEq, Eq, Debug, DekuRead, DekuWrite, Serialize, Deserialize)]
 #[serde(untagged)]
 #[deku(ctx = "_endian: Endian, version: SeHdrVersion", id = "version")]
 pub enum SeHdrVersioned {
     #[deku(id = "SeHdrVersion::V1")]
     SeHdrBinV1(SeHdrBinV1),
+    #[deku(id = "SeHdrVersion::V2")]
+    SeHdrBinV2(SeHdrBinV2),
+}
+
+impl KeyExchangeTrait for SeHdrVersioned {
+    type PrivateKeyType = PKey<Private>;
+    type TargetKeyType = pv::request::HostKey;
+
+    fn contains<K>(&self, key: K) -> Result<bool>
+    where
+        K: AsRef<Self::TargetKeyType>,
+    {
+        match (self, key.as_ref()) {
+            (SeHdrVersioned::SeHdrBinV1(data), pv::request::HostKey::V1(key)) => data.contains(key),
+            (SeHdrVersioned::SeHdrBinV2(data), pv::request::HostKey::V2(key)) => data.contains(key),
+            (_, _) => Err(Error::InvalidSeHdr),
+        }
+    }
+
+    fn contains_hash<H: AsRef<[u8]>>(&self, hash: H) -> bool {
+        match self {
+            SeHdrVersioned::SeHdrBinV1(data) => data.contains_hash(hash),
+            SeHdrVersioned::SeHdrBinV2(data) => data.contains_hash(hash),
+        }
+    }
+
+    fn cust_pub_key(&mut self) -> Result<PKey<Public>> {
+        match self {
+            SeHdrVersioned::SeHdrBinV1(data) => data.cust_pub_key(),
+            SeHdrVersioned::SeHdrBinV2(data) => data.cust_pub_key(),
+        }
+    }
+
+    fn key_type(&self) -> SymKeyType {
+        match self {
+            SeHdrVersioned::SeHdrBinV1(data) => data.key_type(),
+            SeHdrVersioned::SeHdrBinV2(data) => data.key_type(),
+        }
+    }
 }
 
 impl Display for SeHdrVersioned {
@@ -223,10 +276,18 @@ impl Display for SeHdrVersioned {
                     write!(f, "{se_hdr_bin_v1}")
                 }
             }
+            SeHdrVersioned::SeHdrBinV2(se_hdr_bin_v2) => {
+                if f.alternate() {
+                    write!(f, "{se_hdr_bin_v2:#}")
+                } else {
+                    write!(f, "{se_hdr_bin_v2}")
+                }
+            }
         }
     }
 }
 
+#[non_exhaustive]
 #[enum_dispatch(
     AeadCipherTrait,
     AeadPlainDataTrait,
@@ -239,6 +300,8 @@ impl Display for SeHdrVersioned {
 pub enum SeHdrData {
     #[deku(id = "SeHdrVersion::V1")]
     SeHdrDataV1(SeHdrDataV1),
+    #[deku(id = "SeHdrVersion::V2")]
+    SeHdrDataV2(SeHdrDataV2),
 }
 
 impl Display for SeHdrData {
@@ -251,6 +314,13 @@ impl Display for SeHdrData {
                     write!(f, "{data_v1}")
                 }
             }
+            SeHdrData::SeHdrDataV2(data_v2) => {
+                if f.alternate() {
+                    write!(f, "{data_v2:#}")
+                } else {
+                    write!(f, "{data_v2}")
+                }
+            }
         }
     }
 }
@@ -259,6 +329,7 @@ impl AeadCipherBuilderTrait for SeHdrData {
     fn set_iv(&mut self, iv: &[u8]) -> Result<()> {
         match self {
             Self::SeHdrDataV1(data) => data.set_iv(iv),
+            Self::SeHdrDataV2(data) => data.set_iv(iv),
         }
     }
 }
@@ -267,7 +338,7 @@ impl AeadCipherBuilderTrait for SeHdrData {
 pub trait SeHdrPubBuilderTrait {
     // Payload related methods
     fn set_components(&mut self, meta: ComponentMetadata) -> Result<()>;
-    fn set_pcf(&mut self, pcf: &PlaintextControlFlagsV1) -> Result<()>;
+    fn set_pcf(&mut self, pcf: &EffectiveControlFlags<SeHdrFlag>) -> Result<()>;
 }
 
 #[allow(dead_code)]
@@ -276,7 +347,7 @@ pub trait SeHdrConfBuilderTrait {
     fn generate_cck(&self) -> Result<SymKey>;
     fn set_cck(&mut self, cck: Confidential<Vec<u8>>) -> Result<()>;
     fn set_psw(&mut self, psw: &PSW);
-    fn set_scf(&mut self, scf: &SecretControlFlagsV1) -> Result<()>;
+    fn set_scf(&mut self, scf: &EffectiveControlFlags<SeHdrFlag>) -> Result<()>;
 }
 
 #[enum_dispatch(SeHdr)]
@@ -316,14 +387,13 @@ impl AeadDataTrait for SeHdr {
 }
 
 impl KeyExchangeTrait for SeHdr {
+    type PrivateKeyType = PKey<Private>;
+    type TargetKeyType = pv::request::HostKey;
+
     fn contains_hash<H: AsRef<[u8]>>(&self, hash: H) -> bool {
         self.data.contains_hash(hash)
     }
 
-    fn contains<K: AsRef<PKeyRef<Public>>>(&self, key: K) -> Result<bool> {
-        self.data.contains(key)
-    }
-
     fn cust_pub_key(&mut self) -> Result<PKey<Public>> {
         self.data.cust_pub_key()
     }
@@ -331,6 +401,13 @@ impl KeyExchangeTrait for SeHdr {
     fn key_type(&self) -> SymKeyType {
         self.aead_key_type()
     }
+
+    fn contains<K>(&self, key: K) -> Result<bool>
+    where
+        K: AsRef<Self::TargetKeyType>,
+    {
+        self.data.contains(key)
+    }
 }
 
 impl UvDataTrait for SeHdr {
@@ -407,25 +484,46 @@ impl AeadCipherBuilderTrait for SeHdrPlain {
 }
 
 impl KeyExchangeBuilderTrait for SeHdrPlain {
+    type AeadKeyType = SymKey;
+    type PrivateKeyType = PKey<Private>;
+    type TargetKeyType = pv::request::HostKey;
+
     fn add_keyslot(
         &mut self,
-        hostkey: &PKeyRef<Public>,
-        aead_key: &SymKey,
-        priv_key: &PKeyRef<Private>,
+        hostkey: &Self::TargetKeyType,
+        aead_key: &Self::AeadKeyType,
+        priv_key: &Self::PrivateKeyType,
     ) -> Result<()> {
-        self.data.add_keyslot(hostkey, aead_key, priv_key)
+        match (&mut self.data, hostkey) {
+            (SeHdrData::SeHdrDataV1(data), pv::request::HostKey::V1(key)) => {
+                data.add_keyslot(key, aead_key, priv_key)
+            }
+            (SeHdrData::SeHdrDataV2(data), pv::request::HostKey::V2(key)) => {
+                data.add_keyslot(key, aead_key, priv_key)
+            }
+            (_, _) => Err(Error::InvalidSeHdr),
+        }
     }
 
     fn clear_keyslots(&mut self) -> Result<()> {
-        self.data.clear_keyslots()
+        match &mut self.data {
+            SeHdrData::SeHdrDataV1(data) => data.clear_keyslots(),
+            SeHdrData::SeHdrDataV2(data) => data.clear_keyslots(),
+        }
     }
 
     fn generate_private_key(&self) -> Result<PKey<Private>> {
-        self.data.generate_private_key()
+        match &self.data {
+            SeHdrData::SeHdrDataV1(data) => data.generate_private_key(),
+            SeHdrData::SeHdrDataV2(data) => data.generate_private_key(),
+        }
     }
 
-    fn set_cust_public_key(&mut self, key: &PKeyRef<Private>) -> Result<()> {
-        self.data.set_cust_public_key(key)
+    fn set_cust_public_key(&mut self, key: &Self::PrivateKeyType) -> Result<()> {
+        match &mut self.data {
+            SeHdrData::SeHdrDataV1(data) => data.set_cust_public_key(key),
+            SeHdrData::SeHdrDataV2(data) => data.set_cust_public_key(key),
+        }
     }
 }
 
@@ -451,20 +549,39 @@ pub enum ComponentMetadata {
 }
 
 impl KeyExchangeTrait for SeHdrPlain {
-    fn contains<K: AsRef<PKeyRef<Public>>>(&self, key: K) -> Result<bool> {
-        self.data.contains(key)
-    }
+    type PrivateKeyType = PKey<Private>;
+    type TargetKeyType = pv::request::HostKey;
 
     fn cust_pub_key(&mut self) -> Result<PKey<Public>> {
-        self.data.cust_pub_key()
+        match &mut self.data {
+            SeHdrData::SeHdrDataV1(data) => data.cust_pub_key(),
+            SeHdrData::SeHdrDataV2(data) => data.cust_pub_key(),
+        }
     }
 
     fn key_type(&self) -> SymKeyType {
-        self.data.key_type()
+        match &self.data {
+            SeHdrData::SeHdrDataV1(data) => data.key_type(),
+            SeHdrData::SeHdrDataV2(data) => data.key_type(),
+        }
     }
 
     fn contains_hash<H: AsRef<[u8]>>(&self, hash: H) -> bool {
-        self.data.contains_hash(hash)
+        match &self.data {
+            SeHdrData::SeHdrDataV1(data) => data.contains_hash(hash),
+            SeHdrData::SeHdrDataV2(data) => data.contains_hash(hash),
+        }
+    }
+
+    fn contains<K>(&self, key: K) -> Result<bool>
+    where
+        K: AsRef<Self::TargetKeyType>,
+    {
+        match (&self.data, key.as_ref()) {
+            (SeHdrData::SeHdrDataV1(data), pv::request::HostKey::V1(key)) => data.aad.contains(key),
+            (SeHdrData::SeHdrDataV2(data), pv::request::HostKey::V2(key)) => data.aad.contains(key),
+            (_, _) => Err(Error::InvalidSeHdr),
+        }
     }
 }
 

rust/pvimg/src/pv_utils/se_hdr/builder.rs

@@ -5,7 +5,8 @@
 use pv::request::Confidential;
 
 use super::hdr_v1::SeHdrDataV1;
-use super::SeHdr;
+use super::hdr_v2::SeHdrDataV2;
+use super::{EffectiveControlFlags, SeHdr, SeHdrFlag};
 use crate::pv_utils::error::{Error, Result};
 use crate::pv_utils::se_hdr::brb::{
     SeHdrCommon, SeHdrConfBuilderTrait, SeHdrData, SeHdrPubBuilderTrait,
@@ -15,10 +16,10 @@ use crate::pv_utils::uvdata::UvDataPlainTrait;
 use crate::pv_utils::uvdata_builder::{
     AeadCipherBuilderTrait, BuilderTrait, KeyExchangeBuilderTrait, UvDataBuilder,
 };
-use crate::pv_utils::{PlaintextControlFlagsV1, SecretControlFlagsV1, PSW};
+use crate::pv_utils::PSW;
 
 /// `SeHdrBuilder`
-pub type SeHdrBuilder<'a> = UvDataBuilder<'a, SeHdrPlain>;
+pub type SeHdrBuilder<'a> = UvDataBuilder<SeHdrPlain>;
 
 impl SeHdrBuilder<'_> {
     pub fn new<M: Into<ComponentMetadata>>(
@@ -40,6 +41,19 @@ impl SeHdrBuilder<'_> {
                 data.set_cust_public_key(&priv_key)?;
                 (SeHdrData::SeHdrDataV1(data), aead_key, priv_key)
             }
+            SeHdrVersion::V2 => {
+                let mut data = SeHdrDataV2::new(
+                    psw,
+                    components_meta
+                        .into()
+                        .try_into()
+                        .map_err(|_| Error::InvalidComponentMetadata)?,
+                )?;
+                let aead_key = data.generate_aead_key()?;
+                let priv_key = data.generate_private_key()?;
+                data.set_cust_public_key(&priv_key)?;
+                (SeHdrData::SeHdrDataV2(data), aead_key, priv_key)
+            }
         };
         let common = SeHdrCommon::new(version);
         let hdr = SeHdrPlain { common, data };
@@ -67,12 +81,12 @@ impl SeHdrBuilder<'_> {
         Ok(self)
     }
 
-    pub fn with_pcf(&mut self, flags: &PlaintextControlFlagsV1) -> Result<&mut Self> {
+    pub fn with_pcf(&mut self, flags: &EffectiveControlFlags<SeHdrFlag>) -> Result<&mut Self> {
         self.plain_data.data.set_pcf(flags)?;
         Ok(self)
     }
 
-    pub fn with_scf(&mut self, flags: &SecretControlFlagsV1) -> Result<&mut Self> {
+    pub fn with_scf(&mut self, flags: &EffectiveControlFlags<SeHdrFlag>) -> Result<&mut Self> {
         self.plain_data.data.set_scf(flags)?;
         Ok(self)
     }
@@ -95,8 +109,8 @@ impl BuilderTrait for SeHdrBuilder<'_> {
 mod tests {
     use std::io::Cursor;
 
-    use pv::request::{Confidential, SymKeyType, SHA_512_HASH_LEN};
-    use pv::test_utils::get_test_key_and_cert;
+    use pv::request::{Confidential, HostKey, HybridPKey, SymKeyType, SHA_512_HASH_LEN};
+    use pv::test_utils::{get_test_key_and_cert, get_test_key_and_cert_hybrid};
 
     use super::*;
     use crate::pv_utils::se_hdr::ComponentMetadataV1;
@@ -108,7 +122,7 @@ mod tests {
         use pv::test_utils::get_test_key_and_cert;
 
         let (cust_key, host_key) = get_test_key_and_cert();
-        let host_keys = [host_key.public_key().unwrap()];
+        let host_keys = [HostKey::V1(host_key.public_key().unwrap())];
         let xts_key = Confidential::new([0x3; SymKeyType::AES_256_XTS_KEY_LEN]);
         let xts_key2 = Confidential::new([0x3; SymKeyType::AES_256_XTS_KEY_LEN]);
         let mut builder = SeHdrBuilder::new(
@@ -236,10 +250,140 @@ mod tests {
         let _decrypted_hdrv1: SeHdrDataV1 = decrypted.data.try_into().expect("BUG");
     }
 
+    #[test]
+    fn builder_test_v2() {
+        use pv::test_utils::get_test_key_and_cert_hybrid;
+
+        let (cust_key, host_key1, host_key2) = get_test_key_and_cert_hybrid();
+        let host_keys = [HostKey::V2(
+            HybridPKey::new(
+                host_key1.public_key().unwrap(),
+                host_key2.public_key().unwrap(),
+            )
+            .unwrap(),
+        )];
+        let xts_key = Confidential::new([0x3; SymKeyType::AES_256_XTS_KEY_LEN]);
+        let xts_key2 = Confidential::new([0x3; SymKeyType::AES_256_XTS_KEY_LEN]);
+        let mut builder = SeHdrBuilder::new(
+            SeHdrVersion::V2,
+            PSW {
+                addr: 1234,
+                mask: 5678,
+            },
+            ComponentMetadata::ComponentMetadataV1(ComponentMetadataV1 {
+                ald: [0x1; SHA_512_HASH_LEN],
+                pld: [0x2; SHA_512_HASH_LEN],
+                tld: [0x3; SHA_512_HASH_LEN],
+                nep: 1,
+                key: xts_key,
+            }),
+        )
+        .expect("should not fail");
+
+        //        builder.add_comp_data(addr, tweak, )?;
+        builder
+            .with_components(ComponentMetadataV1 {
+                ald: [0x1; SHA_512_HASH_LEN],
+                pld: [0x2; SHA_512_HASH_LEN],
+                tld: [0x3; SHA_512_HASH_LEN],
+                nep: 1,
+                key: xts_key2,
+            })
+            .expect("should not fail");
+        builder
+            .with_priv_key(&cust_key)
+            .expect_err("Error expected as expert mode is not enabled");
+
+        builder.expert_mode = true;
+        builder.with_priv_key(&cust_key).expect("should not fail");
+
+        // Set CCK
+        // Too large key
+        builder
+            .with_cck([49; SymKeyType::AES_256_GCM_KEY_LEN - 1].to_vec().into())
+            .expect_err("should fail");
+        // Too small key
+        builder
+            .with_cck([49; SymKeyType::AES_256_GCM_KEY_LEN + 1].to_vec().into())
+            .expect_err("should fail");
+
+        builder
+            .with_cck([49; SymKeyType::AES_256_GCM_KEY_LEN].to_vec().into())
+            .expect("should not fail");
+
+        // Set protection key
+        // Too large key
+        builder
+            .with_aead_key(Confidential::new([50; 33].into()))
+            .expect_err("should fail");
+        // Too small key
+        builder
+            .with_aead_key(Confidential::new([50; 31].into()))
+            .expect_err("should fail");
+
+        builder
+            .with_aead_key(Confidential::new([50; 32].into()))
+            .expect("should not fail");
+
+        // Set IV
+        // Too large IV
+        builder.with_iv(&[51; 13]).expect_err("should fail");
+        // Too small IV
+        builder.with_iv(&[51; 11]).expect_err("should fail");
+
+        builder.with_iv(&[51; 12]).expect("should not fail");
+
+        builder.add_hostkeys(&host_keys).expect("should not fail");
+
+        let prot_key = builder.prot_key().clone();
+        let bin = builder.build().expect("wuhu");
+        assert_eq!(bin.common.version, SeHdrVersion::V2);
+        assert_eq!(bin.as_bytes().expect("should not fail").len(), 2240);
+        assert_eq!(
+            bin.as_bytes().expect("should not fail")[..480],
+            [
+                73, 66, 77, 83, 101, 99, 69, 120, 0, 0, 2, 0, 0, 0, 8, 192, 51, 51, 51, 51, 51, 51,
+                51, 51, 51, 51, 51, 51, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0,
+                128, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+                0, 0, 0, 0, 0, 199, 93, 52, 249, 22, 82, 219, 69, 123, 11, 32, 156, 70, 164, 145,
+                164, 78, 226, 177, 110, 35, 194, 216, 218, 241, 22, 103, 138, 98, 242, 76, 227, 50,
+                197, 153, 95, 8, 69, 107, 102, 177, 109, 213, 90, 146, 197, 7, 241, 227, 26, 247,
+                140, 100, 168, 46, 122, 84, 27, 21, 19, 80, 21, 242, 2, 134, 0, 0, 0, 0, 0, 0, 0,
+                0, 0, 0, 0, 0, 0, 0, 1, 64, 128, 88, 167, 241, 165, 195, 80, 151, 83, 58, 2, 169,
+                56, 121, 231, 222, 103, 186, 40, 11, 206, 131, 101, 236, 148, 178, 185, 8, 245,
+                137, 195, 169, 152, 216, 190, 30, 99, 7, 215, 74, 224, 26, 220, 70, 130, 95, 246,
+                187, 111, 160, 92, 17, 71, 207, 226, 204, 244, 162, 79, 61, 131, 61, 218, 112, 2,
+                2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+                2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+                2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+                1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+                1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
+                3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
+                3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 255, 94, 191,
+                53, 220, 196, 47, 37, 93, 227, 234, 101, 1, 174, 171, 68, 42, 136, 92, 238, 72, 6,
+                17, 77, 231, 225, 174, 22, 222, 188, 212, 15, 248, 145, 72, 126, 139, 17, 233, 225,
+                156, 46, 233, 151, 54, 2, 175, 88, 215, 254, 243, 222, 37, 81, 50, 110, 18, 76,
+                252, 12, 210, 146, 66, 23
+            ][..480]
+        );
+
+        let decrypted = bin.decrypt(&prot_key).expect("BUG");
+        assert_eq!(bin.common, decrypted.common);
+        assert_eq!(
+            bin.aad().expect("should not fail"),
+            decrypted.aad().expect("should not fail")
+        );
+        assert_ne!(
+            &bin.data(),
+            decrypted.data().expect("should not fail").value()
+        );
+        let _decrypted_hdrv2: SeHdrDataV2 = decrypted.data.try_into().expect("BUG");
+    }
+
     #[test]
     fn chain_test() {
         let (_, host_key) = get_test_key_and_cert();
-        let host_keys = [host_key.public_key().unwrap()];
+        let host_keys = [HostKey::V1(host_key.public_key().unwrap())];
         let xts_key = Confidential::new([0x3; SymKeyType::AES_256_XTS_KEY_LEN]);
         let meta = ComponentMetadataV1 {
             ald: [0x1; SHA_512_HASH_LEN],
@@ -274,4 +418,49 @@ mod tests {
         assert_eq!(hdr_plain.common.version, hdr.common.version);
         let _hdr_data_v1: SeHdrDataV1 = hdr_plain.data.try_into().expect("should not fail");
     }
+
+    #[test]
+    fn chain_test_v2() {
+        let (_, host_key1, host_key2) = get_test_key_and_cert_hybrid();
+        let host_keys = [HostKey::V2(
+            HybridPKey::new(
+                host_key1.public_key().unwrap(),
+                host_key2.public_key().unwrap(),
+            )
+            .unwrap(),
+        )];
+        let xts_key = Confidential::new([0x3; SymKeyType::AES_256_XTS_KEY_LEN]);
+        let meta = ComponentMetadataV1 {
+            ald: [0x1; SHA_512_HASH_LEN],
+            pld: [0x2; SHA_512_HASH_LEN],
+            tld: [0x3; SHA_512_HASH_LEN],
+            nep: 3,
+            key: xts_key,
+        };
+        let cck = Confidential::new([0x42; 32].to_vec());
+        let mut builder = SeHdrBuilder::new(
+            SeHdrVersion::V2,
+            PSW {
+                addr: 1234,
+                mask: 5678,
+            },
+            meta,
+        )
+        .expect("should not fail");
+
+        let prot_key = builder.prot_key().to_owned();
+        builder
+            .add_hostkeys(&host_keys)
+            .expect("should not fail")
+            .with_cck(cck)
+            .expect("should not fail");
+        let bin = builder.build().expect("should not fail");
+
+        let reader = Cursor::new(bin.as_bytes().expect("should not fail"));
+        let hdr = SeHdr::try_from_io(reader).unwrap();
+        let hdr_plain = hdr.decrypt(&prot_key).unwrap();
+        assert_eq!(hdr_plain.common.version, SeHdrVersion::V2);
+        assert_eq!(hdr_plain.common.version, hdr.common.version);
+        let _hdr_data_v2: SeHdrDataV2 = hdr_plain.data.try_into().expect("should not fail");
+    }
 }

rust/pvimg/src/pv_utils/se_hdr/generic_flags.rs

@@ -0,0 +1,878 @@
+// SPDX-License-Identifier: MIT
+//
+// Copyright IBM Corp.
+
+//! Generic control flags infrastructure for Secure Execution (SE) headers.
+//!
+//! This module provides the generic, reusable components for managing control flags
+//! in IBM Secure Execution headers. It defines traits, generic types, and implementations
+//! that can work with any flag enum type.
+//!
+//! # Core Components
+//!
+//! ## Traits
+//!
+//! - [`ControlFlagTrait`] - Core trait that flag enums must implement
+//! - [`IntoEnumIterator`] - Enables iteration over flag enum variants
+//! - [`IntoBitPosition`] - Converts types to bit positions
+//!
+//! ## Generic Types
+//!
+//! - [`ControlFlagsModel<T>`] - Version-specific configuration model
+//! - [`EffectiveControlFlags<T>`] - Final flags after applying overrides
+//! - [`FlagsOverride<T>`] - Container for user-specified overrides
+//! - [`FlagData<T>`] - Pairs a flag with its state
+//! - [`UnknownFlags`] - Tracks unknown/unsupported flag bits
+//!
+//! ## Supporting Types
+//!
+//! - [`FlagState`] - Enabled or Disabled state
+//! - [`FlagValidationError<T>`] - Validation errors
+//! - [`Msb0FlagsConversionError<T>`] - Conversion errors
+//!
+//! # Usage
+//!
+//! This module is not typically used directly. Instead, use the concrete implementations
+//! in the [`flags`](super::flags) module which provide `SeHdrFlag`, `SeHdrControlFlagsModel`,
+//! and related types built on top of this generic infrastructure.
+
+use std::collections::{HashMap, HashSet};
+use std::fmt::{Debug, Display};
+use std::hash::Hash;
+
+use pv::misc::{Flags, Msb0Flags64};
+
+use super::brb::SeHdrVersion;
+
+#[derive(Debug)]
+pub enum FlagValidationError<T: ControlFlagTrait> {
+    UnknownFlag(),
+    NotSupported { model: &'static str, flag: T },
+}
+
+impl<T: ControlFlagTrait> Display for FlagValidationError<T> {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        match self {
+            FlagValidationError::UnknownFlag() => write!(f, "Unknown flag"),
+            FlagValidationError::NotSupported { model, flag } => {
+                write!(f, "Flag '{}' is not supported in {}", flag, model)
+            }
+        }
+    }
+}
+
+impl<T: ControlFlagTrait> std::error::Error for FlagValidationError<T> {}
+
+/// Secure Execution target configuration.
+///
+/// Specifies the target environment for which a Secure Execution boot image is being created.
+/// This enum allows selecting the appropriate control flags and configuration based on the
+/// target machine generation or SE header version.
+///
+/// # Current Usage
+///
+/// Currently, this enum is primarily used for selecting control flags configurations.
+/// The target determines which control flags are available and their default values.
+///
+/// # Purpose
+///
+/// The target determines:
+/// - Which control flags are available and their default values
+/// - The SE header format version to use
+/// - Compatibility with specific machine generations (future use)
+///
+/// # Future Extensibility
+///
+/// This design allows for future expansion when multiple variants of V1 or V2 configurations
+/// may exist.
+///
+/// # Examples
+///
+/// ```
+/// use pvimg::uvdata::{SeHdrControlFlagsModel, SeTarget};
+///
+/// // Select latest V1 configuration for newest features
+/// let target = SeTarget::V1Max;
+///
+/// // Use target to get appropriate control flags
+/// let pcf = SeHdrControlFlagsModel::pcf_for_target(target);
+/// ```
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, PartialOrd, Ord)]
+pub enum SeTarget {
+    /// Latest V1 configuration.
+    ///
+    /// Targets the most recent V1 SE header format with all available V1 control flags.
+    /// Use this for maximum compatibility with older machine generations that support V1.
+    V1Max,
+
+    /// Latest V2 configuration.
+    ///
+    /// Targets the most recent V2 SE header format with all available V2 control flags.
+    /// Use this for newest features and machine generations that support V2.
+    V2Max,
+}
+
+impl SeTarget {
+    /// Converts the target to the corresponding SeHdrVersion.
+    pub fn to_se_hdr_version(self) -> SeHdrVersion {
+        match self {
+            SeTarget::V1Max => SeHdrVersion::V1,
+            SeTarget::V2Max => SeHdrVersion::V2,
+        }
+    }
+
+    /// Creates a target from a SeHdrVersion.
+    pub fn from_se_hdr_version(version: SeHdrVersion) -> Self {
+        match version {
+            SeHdrVersion::V1 => SeTarget::V1Max,
+            SeHdrVersion::V2 => SeTarget::V2Max,
+        }
+    }
+}
+
+impl Display for SeTarget {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        match self {
+            SeTarget::V1Max => write!(f, "V1-max"),
+            SeTarget::V2Max => write!(f, "V2-max"),
+        }
+    }
+}
+
+pub trait IntoEnumIterator {
+    /// Returns an iterator over all variants of this enum.
+    fn iter() -> impl Iterator<Item = Self>;
+}
+
+/// Trait for individual control flag types.
+///
+/// This trait defines the interface for control flag enums, providing methods
+/// to get the flag's bit position and create enabled/disabled flag data.
+pub trait ControlFlagTrait:
+    Debug + Hash + Copy + Eq + Ord + Display + IntoEnumIterator + AsRef<Self>
+{
+    /// Returns the bit position of this flag.
+    ///
+    /// The bit position determines where this flag is set in the control flags bitfield.
+    fn bit_position(self) -> u8;
+
+    /// Creates flag data with this flag in the enabled state.
+    fn enabled(self) -> FlagData<Self> {
+        FlagData::new(self, FlagState::Enabled)
+    }
+
+    /// Creates flag data with this flag in the disabled state.
+    fn disabled(self) -> FlagData<Self> {
+        FlagData::new(self, FlagState::Disabled)
+    }
+}
+
+/// Internal state of a control flag (enabled or disabled).
+#[derive(Debug, PartialEq, Eq, PartialOrd, Ord, Clone, Copy)]
+pub enum FlagState {
+    /// Flag is enabled (bit set to 1)
+    Enabled,
+    /// Flag is disabled (bit set to 0)
+    Disabled,
+}
+
+/// Represents a control flag with its associated state.
+///
+/// This structure pairs a flag with its enabled/disabled state, used when
+/// constructing or modifying `ControlFlags` instances.
+#[derive(Debug, PartialEq, Eq, PartialOrd, Ord, Clone)]
+pub struct FlagData<T: ControlFlagTrait> {
+    value: T,
+    state: FlagState,
+}
+
+impl<T: ControlFlagTrait> FlagData<T> {
+    const fn new(value: T, state: FlagState) -> Self {
+        Self { value, state }
+    }
+}
+
+/// Generic flags configuration for a specific SE header flags target.
+///
+/// Contains the default and supported flags for a given target version.
+#[derive(Clone, Debug, PartialEq, Eq)]
+pub struct ControlFlagsModel<T: ControlFlagTrait> {
+    target: SeTarget,
+    default: HashSet<T>,
+    supported: HashSet<T>,
+}
+
+impl<T: ControlFlagTrait> ControlFlagsModel<T> {
+    /// Creates a new Flags configuration.
+    pub(super) fn new(target: SeTarget, default: HashSet<T>, supported: HashSet<T>) -> Self {
+        Self {
+            target,
+            default,
+            supported,
+        }
+    }
+
+    /// Returns the SE header flags target.
+    pub fn target(&self) -> SeTarget {
+        self.target
+    }
+
+    /// Returns the SE header version corresponding to this target.
+    pub fn version(&self) -> SeHdrVersion {
+        self.target.to_se_hdr_version()
+    }
+
+    /// Returns the set of default flags for this version.
+    pub fn default_flags(&self) -> &HashSet<T> {
+        &self.default
+    }
+
+    /// Returns the set of supported flags for this version.
+    pub fn supported_flags(&self) -> &HashSet<T> {
+        &self.supported
+    }
+
+    /// Checks if a flag is supported in this version.
+    pub fn supports<F: AsRef<T>>(&self, flag: F) -> bool {
+        self.supported.contains(flag.as_ref())
+    }
+
+    /// Checks if a flag is a default flag in this version.
+    #[must_use]
+    pub fn is_default<F: AsRef<T>>(&self, flag: F) -> bool {
+        self.default.contains(flag.as_ref())
+    }
+
+    /// Validates that all flags in the overrides are supported by this model.
+    ///
+    /// # Arguments
+    ///
+    /// * `overrides` - The overrides to validate
+    ///
+    /// # Errors
+    ///
+    /// Returns `FlagValidationError::NotSupported` if any override flag is not supported by this
+    /// model
+    pub fn validate_overrides(
+        &self,
+        overrides: &FlagsOverride<T>,
+    ) -> Result<(), FlagValidationError<T>> {
+        for (flag, _state) in overrides.iter() {
+            if !self.supports(flag) {
+                return Err(FlagValidationError::NotSupported {
+                    model: std::any::type_name::<T>(),
+                    flag: *flag,
+                });
+            }
+        }
+        Ok(())
+    }
+
+    /// Applies overrides to the default flags and returns the effective control flags.
+    ///
+    /// This method validates the overrides, applies them to the default flags, and returns
+    /// an `EffectiveControlFlags` instance containing the resulting configuration.
+    ///
+    /// # Arguments
+    ///
+    /// * `overrides` - Overrides to apply to the default flags
+    ///
+    /// # Returns
+    ///
+    /// An `EffectiveControlFlags<T>` instance with the effective flags after applying overrides
+    ///
+    /// # Errors
+    ///
+    /// Returns `FlagValidationError::NotSupported` if an override flag is not supported by this
+    /// model
+    pub fn with_overrides(
+        &self,
+        overrides: &FlagsOverride<T>,
+    ) -> Result<EffectiveControlFlags<T>, FlagValidationError<T>> {
+        // Validate overrides first
+        self.validate_overrides(overrides)?;
+        let mut effective_flags = self.default.clone();
+
+        // Apply overrides
+        for (flag, state) in overrides.iter() {
+            match state {
+                FlagState::Enabled => {
+                    effective_flags.insert(*flag);
+                }
+                FlagState::Disabled => {
+                    effective_flags.remove(flag);
+                }
+            }
+        }
+
+        Ok(EffectiveControlFlags {
+            version: self.version(),
+            known_flags: effective_flags,
+            unknown_flags: UnknownFlags::empty(),
+        })
+    }
+}
+
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub struct UnknownFlags(Msb0Flags64);
+
+/// Trait for types that can be converted to a bit position.
+pub trait IntoBitPosition {
+    fn into_bit_position(self) -> u8;
+}
+
+/// Implement IntoBitPosition for u8 directly
+impl IntoBitPosition for u8 {
+    fn into_bit_position(self) -> u8 {
+        self
+    }
+}
+
+/// Implement IntoBitPosition for types that implement ControlFlagTrait
+impl<T: ControlFlagTrait> IntoBitPosition for T {
+    fn into_bit_position(self) -> u8 {
+        self.bit_position()
+    }
+}
+
+impl UnknownFlags {
+    pub fn empty() -> Self {
+        Self(Msb0Flags64::from(0u64))
+    }
+
+    pub fn from_bits(bits: Msb0Flags64) -> Self {
+        Self(bits)
+    }
+
+    pub fn bits(self) -> u64 {
+        self.0.into()
+    }
+
+    #[must_use]
+    pub fn is_empty(self) -> bool {
+        self.bits() == 0
+    }
+
+    /// Checks if a specific flag or bit position is set in the unknown flags.
+    ///
+    /// # Arguments
+    ///
+    /// * `flag` - Either a flag that implements `ControlFlagTrait`, a reference to such a flag, or
+    ///   a raw bit position (u8)
+    ///
+    /// # Returns
+    ///
+    /// `true` if the bit position is set in the unknown flags, `false` otherwise
+    ///
+    /// # Examples
+    ///
+    /// ```
+    /// use pv::misc::Msb0Flags64;
+    /// use pvimg::uvdata::UnknownFlags;
+    ///
+    /// // Create UnknownFlags with bit 5 set
+    /// let flags = Msb0Flags64::from(1u64 << (63 - 5));
+    /// let unknown_flags = UnknownFlags::from_bits(flags);
+    ///
+    /// // Using a raw bit position
+    /// assert!(unknown_flags.contains(5u8));
+    /// assert!(!unknown_flags.contains(10u8));
+    /// ```
+    #[must_use]
+    pub fn contains(&self, position: u8) -> bool {
+        self.0.is_set(position)
+    }
+}
+
+/// Represents the effective control flags after applying overrides.
+///
+/// This structure contains the final set of flags that will be used, including both
+/// known flags (from the model) and any unknown flags that were present in the input.
+#[derive(Debug, Clone, PartialEq, Eq)]
+pub struct EffectiveControlFlags<T: ControlFlagTrait> {
+    version: SeHdrVersion,
+    known_flags: HashSet<T>,
+    unknown_flags: UnknownFlags,
+}
+
+impl<T: ControlFlagTrait> EffectiveControlFlags<T> {
+    /// Creates a new EffectiveControlFlags instance.
+    ///
+    /// This is primarily used internally by the flags module.
+    pub(super) fn new(
+        version: SeHdrVersion,
+        known_flags: HashSet<T>,
+        unknown_flags: UnknownFlags,
+    ) -> Self {
+        Self {
+            version,
+            known_flags,
+            unknown_flags,
+        }
+    }
+
+    /// Returns the SE header version.
+    pub fn version(&self) -> SeHdrVersion {
+        self.version
+    }
+
+    /// Returns the set of known flags.
+    pub fn known_flags(&self) -> &HashSet<T> {
+        &self.known_flags
+    }
+
+    /// Returns the unknown flags.
+    pub fn unknown_flags(&self) -> UnknownFlags {
+        self.unknown_flags
+    }
+
+    /// Checks if a flag or bit position is enabled in the effective flags.
+    ///
+    /// This method accepts either a flag type or a raw bit position (u8).
+    ///
+    /// # Arguments
+    ///
+    /// * `position` - Either a flag that implements `ControlFlagTrait`, a reference to such a flag,
+    ///   or a raw bit position (u8)
+    ///
+    /// # Returns
+    ///
+    /// `true` if the flag/bit is enabled, `false` otherwise
+    ///
+    /// # Examples
+    ///
+    /// ```
+    /// use pvimg::uvdata::{SeHdrControlFlagsModel, SeHdrFlag, SeTarget};
+    ///
+    /// // Get default flags for V1
+    /// let pcf_v1 = SeHdrControlFlagsModel::pcf_for_target(SeTarget::V1Max);
+    /// let flags = pcf_v1.with_overrides(&Default::default()).unwrap();
+    ///
+    /// // Using a flag
+    /// assert!(flags.has(SeHdrFlag::PckmoAes));
+    ///
+    /// // Using a raw bit position (PckmoAes is at bit 57)
+    /// assert!(flags.has(57u8));
+    /// ```
+    pub fn has<P: IntoBitPosition>(&self, position: P) -> bool {
+        let bit_pos = position.into_bit_position();
+
+        // Check if any known flag has this bit position
+        for flag in &self.known_flags {
+            if flag.bit_position() == bit_pos {
+                return true;
+            }
+        }
+
+        // Check unknown flags
+        self.unknown_flags.contains(bit_pos)
+    }
+
+    /// Converts the effective flags to a u64 value.
+    ///
+    /// # Returns
+    ///
+    /// A u64 representation combining both known and unknown flags
+    pub fn to_u64(&self) -> u64 {
+        let flags: Msb0Flags64 = self.into();
+        flags.into()
+    }
+}
+
+/// Converts `EffectiveControlFlags` to `Msb0Flags64`.
+///
+/// This combines both known and unknown flags into a single bitfield.
+impl<T: ControlFlagTrait> From<EffectiveControlFlags<T>> for Msb0Flags64 {
+    fn from(flags: EffectiveControlFlags<T>) -> Self {
+        let mut value = Msb0Flags64::from(flags.unknown_flags.bits());
+        for flag in &flags.known_flags {
+            value.set_bit(flag.bit_position());
+        }
+        value
+    }
+}
+
+/// Converts a reference to `EffectiveControlFlags` to `Msb0Flags64`.
+impl<T: ControlFlagTrait> From<&EffectiveControlFlags<T>> for Msb0Flags64 {
+    fn from(flags: &EffectiveControlFlags<T>) -> Self {
+        let mut value = Msb0Flags64::from(flags.unknown_flags.bits());
+        for flag in &flags.known_flags {
+            value.set_bit(flag.bit_position());
+        }
+        value
+    }
+}
+
+/// Display implementation for `EffectiveControlFlags<T>`.
+///
+/// Provides two display formats:
+/// - Normal format: Lists all enabled flags with " - " prefix, one per line
+/// - Alternate format (`{:#}`): Shows the raw bitfield as 66-character binary string
+///
+/// # Examples
+///
+/// ```rust
+/// use pvimg::uvdata::{FlagsOverride, SeHdrControlFlagsModel, SeHdrFlag, SeTarget};
+///
+/// let pcf_v1 = SeHdrControlFlagsModel::pcf_for_target(SeTarget::V1Max);
+/// let mut overrides = FlagsOverride::new();
+/// overrides.enable(SeHdrFlag::ConfidentialDump);
+/// let effective = pcf_v1.with_overrides(&overrides).unwrap();
+///
+/// // Normal format - lists enabled flags
+/// println!("{}", effective);
+///
+/// // Alternate format - shows binary representation
+/// println!("{:#}", effective);
+/// ```
+impl<T: ControlFlagTrait> Display for EffectiveControlFlags<T> {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        if f.alternate() {
+            // Alternate format: show as binary
+            let flags: Msb0Flags64 = self.into();
+            write!(f, "{:#066b}", <u64>::from(flags))
+        } else {
+            // Normal format: list enabled flags
+            let flags_s: Vec<String> = self
+                .known_flags
+                .iter()
+                .map(|flag| format!(" - {flag}"))
+                .collect();
+
+            if flags_s.is_empty() && self.unknown_flags.is_empty() {
+                write!(f, "(no flags enabled)")
+            } else {
+                let mut output = flags_s.join("\n");
+                if !self.unknown_flags.is_empty() {
+                    if !output.is_empty() {
+                        output.push('\n');
+                    }
+                    output.push_str(&format!(
+                        " - unknown flags: {:#018x}",
+                        self.unknown_flags.bits()
+                    ));
+                }
+                write!(f, "{}", output)
+            }
+        }
+    }
+}
+
+/// Converts a reference to `ControlFlagsModel` to `EffectiveControlFlags` using default flags.
+///
+/// This implementation allows conversion without consuming the model.
+///
+/// # Examples
+///
+/// ```rust
+/// use pvimg::uvdata::{EffectiveControlFlags, SeHdrControlFlagsModel, SeTarget};
+///
+/// let pcf_v1 = SeHdrControlFlagsModel::pcf_for_target(SeTarget::V1Max);
+/// let flags: EffectiveControlFlags<_> = (&pcf_v1).into();
+/// // pcf_v1 is still usable here
+/// ```
+impl<T: ControlFlagTrait> From<&ControlFlagsModel<T>> for EffectiveControlFlags<T> {
+    fn from(model: &ControlFlagsModel<T>) -> Self {
+        EffectiveControlFlags {
+            version: model.version(),
+            known_flags: model.default.clone(),
+            unknown_flags: UnknownFlags::empty(),
+        }
+    }
+}
+
+/// Converts `ControlFlagsModel` to `Msb0Flags64` using default flags.
+///
+/// This consumes the model and converts it to a bitfield representation.
+impl<T: ControlFlagTrait> From<ControlFlagsModel<T>> for Msb0Flags64 {
+    fn from(model: ControlFlagsModel<T>) -> Self {
+        let mut value = Msb0Flags64::default();
+        for flag in &model.default {
+            value.set_bit(flag.bit_position());
+        }
+        value
+    }
+}
+
+/// Converts a reference to `ControlFlagsModel` to `Msb0Flags64` using default flags.
+///
+/// This implementation allows conversion without consuming the model.
+impl<T: ControlFlagTrait> From<&ControlFlagsModel<T>> for Msb0Flags64 {
+    fn from(model: &ControlFlagsModel<T>) -> Self {
+        let mut value = Msb0Flags64::default();
+        for flag in &model.default {
+            value.set_bit(flag.bit_position());
+        }
+        value
+    }
+}
+/// Display implementation for `ControlFlagsModel<T>`.
+///
+/// Provides two display formats:
+/// - Normal format: Lists all default (enabled) flags with " - " prefix, one per line
+/// - Alternate format (`{:#}`): Shows the raw bitfield as 66-character binary string
+///
+/// Note: This displays only the flags in the model's `default` set. Unknown flags
+/// are not tracked by `ControlFlagsModel` - they are returned separately by
+/// `from_msb0_flags()` when parsing raw bitfields.
+///
+/// # Examples
+///
+/// ```rust
+/// use pvimg::uvdata::{SeHdrControlFlagsModel, SeTarget};
+///
+/// let pcf_v1 = SeHdrControlFlagsModel::pcf_for_target(SeTarget::V1Max);
+///
+/// // Normal format - lists default flags
+/// println!("{}", pcf_v1);
+///
+/// // Alternate format - shows binary representation
+/// println!("{:#}", pcf_v1);
+/// ```
+impl<T: ControlFlagTrait> Display for ControlFlagsModel<T> {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        if f.alternate() {
+            // Alternate format: show as binary
+            let flags: Msb0Flags64 = self.into();
+            write!(f, "{:#066b}", <u64>::from(flags))
+        } else {
+            // Normal format: list default (enabled) flags
+            let flags_s: Vec<String> = self
+                .default
+                .iter()
+                .map(|flag| format!(" - {flag}"))
+                .collect();
+
+            if flags_s.is_empty() {
+                write!(f, "(no flags enabled)")
+            } else {
+                write!(f, "{}", flags_s.join("\n"))
+            }
+        }
+    }
+}
+
+/// Error type for `TryFrom<Msb0Flags64>` conversion.
+#[derive(Debug)]
+// Will be used in an upcoming commit
+#[expect(dead_code)]
+pub enum Msb0FlagsConversionError<T: ControlFlagTrait> {
+    /// A flag bit is set that is not supported in any version
+    UnsupportedFlag { bit_position: u8 },
+    /// A flag bit is set that is not supported in the specified version
+    NotSupportedInVersion { flag: T, version: SeHdrVersion },
+}
+
+impl<T: ControlFlagTrait> Display for Msb0FlagsConversionError<T> {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        match self {
+            Self::UnsupportedFlag { bit_position } => {
+                write!(f, "Unsupported flag at bit position {}", bit_position)
+            }
+            Self::NotSupportedInVersion { flag, version } => {
+                write!(f, "Flag {} not supported in version {:?}", flag, version)
+            }
+        }
+    }
+}
+
+impl<T: ControlFlagTrait> std::error::Error for Msb0FlagsConversionError<T> {}
+
+/// Override configuration for control flags.
+///
+/// Allows specifying individual flag states that override the default configuration.
+/// This is useful for customizing flag settings on a per-flag basis.
+///
+/// # Type Parameters
+///
+/// * `T` - The control flag enum type (e.g., [`Flag`])
+///
+/// # Examples
+///
+/// ```rust
+/// use pvimg::uvdata::{FlagsOverride, SeHdrFlag};
+///
+/// let mut overrides = FlagsOverride::new();
+/// overrides.enable(SeHdrFlag::ConfidentialDump);
+/// overrides.disable(SeHdrFlag::PckmoAes);
+/// ```
+#[derive(Debug, Clone)]
+pub struct FlagsOverride<T: ControlFlagTrait> {
+    overrides: HashMap<T, FlagState>,
+}
+
+impl<T: ControlFlagTrait> FlagsOverride<T> {
+    /// Creates a new empty FlagsOverride.
+    pub fn new() -> Self {
+        Self {
+            overrides: HashMap::new(),
+        }
+    }
+
+    /// Sets an override for a specific flag.
+    ///
+    /// # Arguments
+    ///
+    /// * `flag` - The flag to override
+    /// * `state` - The desired state (Enabled or Disabled)
+    pub(super) fn set(&mut self, flag: T, state: FlagState) {
+        self.overrides.insert(flag, state);
+    }
+
+    /// Enables a specific flag by setting its override state to Enabled.
+    ///
+    /// This is a convenience method equivalent to `set(flag, FlagState::Enabled)`.
+    ///
+    /// # Arguments
+    ///
+    /// * `flag` - The flag to enable
+    ///
+    /// # Examples
+    ///
+    /// ```rust
+    /// use pvimg::uvdata::{FlagsOverride, SeHdrFlag};
+    ///
+    /// let mut overrides = FlagsOverride::new();
+    /// overrides.enable(SeHdrFlag::ConfidentialDump);
+    /// ```
+    pub fn enable(&mut self, flag: T) {
+        self.set(flag, FlagState::Enabled);
+    }
+
+    /// Disables a specific flag by setting its override state to Disabled.
+    ///
+    /// This is a convenience method equivalent to `set(flag, FlagState::Disabled)`.
+    ///
+    /// # Arguments
+    ///
+    /// * `flag` - The flag to disable
+    ///
+    /// # Examples
+    ///
+    /// ```rust
+    /// use pvimg::uvdata::{FlagsOverride, SeHdrFlag};
+    ///
+    /// let mut overrides = FlagsOverride::new();
+    /// overrides.disable(SeHdrFlag::PckmoAes);
+    /// ```
+    pub fn disable(&mut self, flag: T) {
+        self.set(flag, FlagState::Disabled);
+    }
+
+    /// Enables multiple flags at once from an iterator.
+    ///
+    /// This is a convenience method for enabling multiple flags in a single call.
+    ///
+    /// # Arguments
+    ///
+    /// * `flags` - An iterator over flags to enable
+    ///
+    /// # Examples
+    ///
+    /// ```rust
+    /// use pvimg::uvdata::{FlagsOverride, SeHdrFlag};
+    ///
+    /// let mut overrides = FlagsOverride::new();
+    /// overrides.enable_all([SeHdrFlag::ConfidentialDump, SeHdrFlag::PckmoAes]);
+    /// ```
+    pub fn enable_all<I>(&mut self, flags: I)
+    where
+        I: IntoIterator<Item = T>,
+    {
+        for flag in flags {
+            self.enable(flag);
+        }
+    }
+
+    /// Disables multiple flags at once from an iterator.
+    ///
+    /// This is a convenience method for disabling multiple flags in a single call.
+    ///
+    /// # Arguments
+    ///
+    /// * `flags` - An iterator over flags to disable
+    ///
+    /// # Examples
+    ///
+    /// ```rust
+    /// use pvimg::uvdata::{FlagsOverride, SeHdrFlag};
+    ///
+    /// let mut overrides = FlagsOverride::new();
+    /// overrides.disable_all([SeHdrFlag::PckmoAes, SeHdrFlag::PckmoEcc]);
+    /// ```
+    pub fn disable_all<I>(&mut self, flags: I)
+    where
+        I: IntoIterator<Item = T>,
+    {
+        for flag in flags {
+            self.disable(flag);
+        }
+    }
+
+    /// Removes an override for a specific flag.
+    ///
+    /// # Arguments
+    ///
+    /// * `flag` - The flag to remove the override for
+    ///
+    /// # Returns
+    ///
+    /// The previous state if it existed, None otherwise
+    pub fn remove(&mut self, flag: T) -> Option<FlagState> {
+        self.overrides.remove(&flag)
+    }
+
+    /// Gets the override state for a specific flag.
+    ///
+    /// # Arguments
+    ///
+    /// * `flag` - The flag to query
+    ///
+    /// # Returns
+    ///
+    /// The override state if it exists, None otherwise
+    pub fn get(&self, flag: T) -> Option<FlagState> {
+        self.overrides.get(&flag).copied()
+    }
+
+    /// Checks if an override exists for a specific flag.
+    ///
+    /// # Arguments
+    ///
+    /// * `flag` - The flag to check
+    pub fn has_override(&self, flag: T) -> bool {
+        self.overrides.contains_key(&flag)
+    }
+
+    /// Returns an iterator over all overrides.
+    pub fn iter(&self) -> impl Iterator<Item = (&T, &FlagState)> {
+        self.overrides.iter()
+    }
+
+    /// Returns an iterator over all flags that have overrides.
+    pub fn flags(&self) -> impl Iterator<Item = &T> {
+        self.overrides.keys()
+    }
+
+    /// Returns the number of overrides.
+    pub fn len(&self) -> usize {
+        self.overrides.len()
+    }
+
+    /// Checks if there are no overrides.
+    #[must_use]
+    pub fn is_empty(&self) -> bool {
+        self.overrides.is_empty()
+    }
+
+    /// Clears all overrides.
+    pub fn clear(&mut self) {
+        self.overrides.clear();
+    }
+}
+
+impl<T: ControlFlagTrait> Default for FlagsOverride<T> {
+    fn default() -> Self {
+        Self::new()
+    }
+}

rust/pvimg/src/pv_utils/se_hdr/hdr_v1.rs

@@ -18,6 +18,7 @@ use serde::{Deserialize, Serialize};
 use utils::HexSlice;
 
 use super::keys::phkh_v1;
+use super::{EffectiveControlFlags, SeHdrControlFlags};
 use crate::error::Error;
 use crate::misc::PAGESIZE;
 use crate::pv_utils::error::Result;
@@ -37,9 +38,7 @@ use crate::pv_utils::uvdata::{
     UvDataTrait,
 };
 use crate::pv_utils::uvdata_builder::{AeadCipherBuilderTrait, KeyExchangeBuilderTrait};
-use crate::pv_utils::{
-    try_copy_slice_to_array, PlaintextControlFlagsV1, SecretControlFlagsV1, PSW,
-};
+use crate::pv_utils::{try_copy_slice_to_array, SeHdrFlag, SeTarget, PSW};
 
 #[derive(Debug)]
 struct HdrSizesV1 {
@@ -100,17 +99,15 @@ impl Display for SeHdrAadV1 {
         writeln!(
             f,
             "plaintext control flags:\n{}",
-            PlaintextControlFlagsV1::from(self.pcf)
+            SeHdrControlFlags::from_u64(self.pcf, SeTarget::V1Max, true)
         )?;
         Ok(())
     }
 }
 
 impl KeyExchangeTrait for SeHdrAadV1 {
-    fn contains<K: AsRef<PKeyRef<Public>>>(&self, key: K) -> Result<bool> {
-        let phkh = phkh_v1(key)?;
-        Ok(self.contains_hash(phkh))
-    }
+    type PrivateKeyType = PKey<Private>;
+    type TargetKeyType = PKeyRef<Public>;
 
     fn cust_pub_key(&mut self) -> Result<PKey<Public>> {
         self.cust_pub_key.clone().try_into()
@@ -129,6 +126,14 @@ impl KeyExchangeTrait for SeHdrAadV1 {
         }
         false
     }
+
+    fn contains<K>(&self, key: K) -> Result<bool>
+    where
+        K: AsRef<Self::TargetKeyType>,
+    {
+        let phkh = phkh_v1(key)?;
+        Ok(self.contains_hash(phkh))
+    }
 }
 
 #[derive(PartialEq, Eq, Debug, Clone, DekuRead, DekuWrite, Serialize, Deserialize)]
@@ -176,7 +181,7 @@ impl Display for SeHdrConfV1 {
         writeln!(
             f,
             "secret control flags:\n{}",
-            SecretControlFlagsV1::from(self.scf)
+            SeHdrControlFlags::from_u64(self.scf, SeTarget::V1Max, false)
         )?;
 
         // Support verbose mode if the `alternate` (`{:#}`) flag is used.
@@ -413,11 +418,15 @@ impl UvDataPlainTrait for SeHdrDataV1 {
 impl SeHdrPlainTrait for SeHdrDataV1 {}
 
 impl KeyExchangeBuilderTrait for SeHdrDataV1 {
+    type AeadKeyType = SymKey;
+    type PrivateKeyType = PKeyRef<Private>;
+    type TargetKeyType = PKeyRef<Public>;
+
     fn add_keyslot(
         &mut self,
-        hostkey: &PKeyRef<Public>,
-        aead_key: &SymKey,
-        priv_key: &PKeyRef<Private>,
+        hostkey: &Self::TargetKeyType,
+        aead_key: &Self::AeadKeyType,
+        priv_key: &Self::PrivateKeyType,
     ) -> Result<()> {
         let keyslot = Keyslot::new(HostKey::V1(hostkey.to_owned()));
         let keyslot_bin = keyslot.encrypt(aead_key.value(), priv_key)?.try_into()?;
@@ -461,9 +470,8 @@ impl KeyExchangeBuilderTrait for SeHdrDataV1 {
 }
 
 impl KeyExchangeTrait for SeHdrDataV1 {
-    fn contains<K: AsRef<PKeyRef<Public>>>(&self, key: K) -> Result<bool> {
-        self.aad.contains(key)
-    }
+    type PrivateKeyType = PKey<Private>;
+    type TargetKeyType = PKeyRef<Public>;
 
     fn cust_pub_key(&mut self) -> Result<PKey<Public>> {
         self.aad.cust_pub_key()
@@ -476,6 +484,13 @@ impl KeyExchangeTrait for SeHdrDataV1 {
     fn contains_hash<H: AsRef<[u8]>>(&self, hash: H) -> bool {
         self.aad.contains_hash(hash)
     }
+
+    fn contains<K>(&self, key: K) -> Result<bool>
+    where
+        K: AsRef<Self::TargetKeyType>,
+    {
+        self.aad.contains(key)
+    }
 }
 
 impl SeHdrConfBuilderTrait for SeHdrDataV1 {
@@ -483,8 +498,8 @@ impl SeHdrConfBuilderTrait for SeHdrDataV1 {
         self.data.value_mut().psw = psw.clone();
     }
 
-    fn set_scf(&mut self, scf: &SecretControlFlagsV1) -> Result<()> {
-        self.data.value_mut().scf = scf.into();
+    fn set_scf(&mut self, scf: &EffectiveControlFlags<SeHdrFlag>) -> Result<()> {
+        self.data.value_mut().scf = scf.to_u64();
         Ok(())
     }
 
@@ -499,8 +514,8 @@ impl SeHdrConfBuilderTrait for SeHdrDataV1 {
 }
 
 impl SeHdrPubBuilderTrait for SeHdrDataV1 {
-    fn set_pcf(&mut self, pcf: &PlaintextControlFlagsV1) -> Result<()> {
-        self.aad.pcf = pcf.into();
+    fn set_pcf(&mut self, pcf: &EffectiveControlFlags<SeHdrFlag>) -> Result<()> {
+        self.aad.pcf = pcf.to_u64();
         Ok(())
     }
 
@@ -591,9 +606,8 @@ impl AeadCipherBuilderTrait for SeHdrDataV1 {
 }
 
 impl KeyExchangeTrait for SeHdrBinV1 {
-    fn contains<K: AsRef<PKeyRef<Public>>>(&self, key: K) -> Result<bool> {
-        self.aad.contains(key)
-    }
+    type PrivateKeyType = PKey<Private>;
+    type TargetKeyType = PKeyRef<Public>;
 
     fn cust_pub_key(&mut self) -> Result<PKey<Public>> {
         self.aad.cust_pub_key()
@@ -606,6 +620,13 @@ impl KeyExchangeTrait for SeHdrBinV1 {
     fn contains_hash<H: AsRef<[u8]>>(&self, hash: H) -> bool {
         self.aad.contains_hash(hash)
     }
+
+    fn contains<K>(&self, key: K) -> Result<bool>
+    where
+        K: AsRef<Self::TargetKeyType>,
+    {
+        self.aad.contains(key)
+    }
 }
 
 impl AeadDataTrait for SeHdrBinV1 {
@@ -655,6 +676,7 @@ mod tests {
 
     use std::io::Cursor;
 
+    use pv::request::HostKey;
     use pv::test_utils::get_test_key_and_cert;
 
     use super::*;
@@ -663,7 +685,7 @@ mod tests {
     #[test]
     fn iv_keys_auto_generation_test() {
         let (_, host_key) = get_test_key_and_cert();
-        let host_keys = [host_key.public_key().unwrap()];
+        let host_keys = [HostKey::V1(host_key.public_key().unwrap())];
         let mut builder = SeHdrBuilder::new(
             SeHdrVersion::V1,
             PSW {
@@ -685,7 +707,7 @@ mod tests {
     #[test]
     fn chain_test() {
         let (_, host_key) = get_test_key_and_cert();
-        let host_keys = [host_key.public_key().unwrap()];
+        let host_keys = [HostKey::V1(host_key.public_key().unwrap())];
         let xts_key = Confidential::new([0x3; SymKeyType::AES_256_XTS_KEY_LEN]);
         let meta = ComponentMetadataV1 {
             ald: [0x1; SHA_512_HASH_LEN],
@@ -731,7 +753,7 @@ mod tests {
         const MAX_HOST_KEYS: usize = 95;
 
         let (_, host_key) = get_test_key_and_cert();
-        let pub_key = host_key.public_key().unwrap();
+        let pub_key = HostKey::V1(host_key.public_key().unwrap());
         let host_keys_max: Vec<_> = (0..MAX_HOST_KEYS).map(|_| pub_key.clone()).collect();
         let too_many_host_keys: Vec<_> = (0..MAX_HOST_KEYS + 1).map(|_| pub_key.clone()).collect();
         let xts_key = Confidential::new([0x3; SymKeyType::AES_256_XTS_KEY_LEN]);

rust/pvimg/src/pv_utils/se_hdr/hdr_v2.rs

@@ -0,0 +1,916 @@
+// SPDX-License-Identifier: MIT
+//
+// Copyright IBM Corp. 2026
+use std::fmt::Display;
+use std::mem::{size_of, size_of_val};
+
+use base64::prelude::BASE64_STANDARD;
+use base64::Engine;
+use deku::ctx::Endian;
+use deku::prelude::*;
+use openssl::nid::Nid;
+use openssl::pkey::{PKeyRef, Public};
+use pv::request::openssl::pkey::{PKey, Private};
+use pv::request::{
+    gen_ec_key, random_array, Aes256XtsKey, Confidential, EcPubKeyCoord, HybridPKey, KeyslotV2,
+    SymKey, SymKeyType, Zeroize, SHA_512_HASH_LEN,
+};
+use serde::{Deserialize, Serialize};
+use utils::HexSlice;
+
+use super::keys::phkh_v2;
+use super::{EffectiveControlFlags, SeHdrControlFlags};
+use crate::error::Error;
+use crate::pv_utils::error::Result;
+use crate::pv_utils::misc::display_indented;
+use crate::pv_utils::se_hdr::brb::{
+    ComponentMetadata, ComponentMetadataV1, SeHdrCommon, SeHdrConfBuilderTrait, SeHdrPlainTrait,
+    SeHdrPubBuilderTrait, SeHdrTrait,
+};
+use crate::pv_utils::se_hdr::keys::{BinaryKeySlotV2, EcPubKeyCoordV1};
+use crate::pv_utils::serializing::{
+    bytesize, bytesize_confidential, confidential_read_slice, confidential_write_slice,
+    serde_base64, serde_hex_array, serde_hex_confidential_array, serde_hex_left_padded_u64,
+    serialize_to_bytes,
+};
+use crate::pv_utils::uv_keys::UvKeyHashV1;
+use crate::pv_utils::uvdata::{
+    AeadCipherTrait, AeadDataTrait, AeadPlainDataTrait, KeyExchangeTrait, UvDataPlainTrait,
+    UvDataTrait,
+};
+use crate::pv_utils::uvdata_builder::{AeadCipherBuilderTrait, KeyExchangeBuilderTrait};
+use crate::pv_utils::{try_copy_slice_to_array, SeHdrFlag, SeTarget, PSW};
+
+#[derive(Debug)]
+struct HdrSizesV2 {
+    pub phs: u64,
+    pub sea: u64,
+}
+
+#[derive(Debug, Clone, PartialEq, Eq, DekuRead, DekuWrite, Serialize, Deserialize)]
+#[deku(endian = "endian", ctx = "endian: Endian", ctx_default = "Endian::Big")]
+pub struct SeHdrAadV2 {
+    #[deku(assert = "*sehs <= SeHdrDataV2::MAX_SIZE.try_into().unwrap()")]
+    pub sehs: u32,
+    #[serde(with = "serde_hex_array", rename = "iv_hex")]
+    pub iv: [u8; SymKeyType::AES_256_GCM_IV_LEN],
+    #[serde(skip)]
+    res1: u32,
+    #[deku(assert = "*nks <= (*sehs).into()", update = "self.keyslots.len()")]
+    pub nks: u64,
+    #[deku(assert = "*sea <= (*sehs).into()")]
+    pub sea: u64,
+    pub nep: u64,
+    #[serde(with = "serde_hex_left_padded_u64", rename = "pcf_hex")]
+    pub pcf: u64,
+    pub cust_pub_key: EcPubKeyCoordV1,
+    #[serde(with = "serde_hex_array", rename = "pld_hex")]
+    pub pld: [u8; SHA_512_HASH_LEN],
+    #[serde(with = "serde_hex_array", rename = "ald_hex")]
+    pub ald: [u8; SHA_512_HASH_LEN],
+    #[serde(with = "serde_hex_array", rename = "tld_hex")]
+    pub tld: [u8; SHA_512_HASH_LEN],
+    #[deku(count = "nks")]
+    pub keyslots: Vec<BinaryKeySlotV2>,
+}
+
+impl SeHdrAadV2 {
+    const KEY_TYPE: SymKeyType = SymKeyType::Aes256Gcm;
+}
+
+impl Display for SeHdrAadV2 {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        // Support verbose mode if the `alternate` (`{:#}`) flag is used.
+        if f.alternate() {
+            writeln!(f, "size: {} bytes", self.sehs)?;
+            writeln!(f, "number of key slots: {}", self.nks)?;
+        }
+        writeln!(f, "key slots:")?;
+        for s in &self.keyslots {
+            writeln!(f, " - {s}")?;
+        }
+        if f.alternate() {
+            let value = display_indented(f, &self.cust_pub_key, 2);
+            writeln!(f, "customer public key:\n{value}",)?;
+            writeln!(f, "number of component pages: {}", self.nep)?;
+            writeln!(f, "components content hash: {:}", HexSlice::from(&self.pld))?;
+            writeln!(f, "components address hash: {:}", HexSlice::from(&self.ald))?;
+            writeln!(f, "components tweak hash: {:}", HexSlice::from(&self.tld))?;
+        }
+        writeln!(
+            f,
+            "plaintext control flags:\n{}",
+            SeHdrControlFlags::from_u64(self.pcf, SeTarget::V2Max, true)
+        )?;
+        Ok(())
+    }
+}
+
+impl KeyExchangeTrait for SeHdrAadV2 {
+    type PrivateKeyType = PKey<Private>;
+    type TargetKeyType = HybridPKey;
+
+    fn cust_pub_key(&mut self) -> Result<PKey<Public>> {
+        self.cust_pub_key.clone().try_into()
+    }
+
+    fn key_type(&self) -> SymKeyType {
+        Self::KEY_TYPE
+    }
+
+    /** contains_hash - test if the given hash is in this SE-header
+     *
+     * * `hash`: hash to compare, either 32 or 64 byte long
+     *
+     * Returns:
+     *   - false if the given hash is not 64 or 32 bytes long
+     *   - the comparison result otherwise
+     */
+    fn contains_hash<H: AsRef<[u8]>>(&self, hash: H) -> bool {
+        let hash = hash.as_ref();
+        let size = hash.len();
+
+        match size {
+            UvKeyHashV1::UV_KEY_HASH_SIZE | SHA_512_HASH_LEN => (),
+            _ => return false,
+        };
+
+        self.keyslots
+            .iter()
+            .any(|ks| ks.phkh[..size] == hash[..size])
+    }
+
+    fn contains<K>(&self, key: K) -> Result<bool>
+    where
+        K: AsRef<Self::TargetKeyType>,
+    {
+        let key = key.as_ref();
+        let phkh = phkh_v2(key)?;
+        Ok(self.contains_hash(phkh))
+    }
+}
+
+#[derive(PartialEq, Eq, Debug, Clone, DekuRead, DekuWrite, Serialize, Deserialize)]
+#[deku(endian = "endian", ctx = "endian: Endian", ctx_default = "Endian::Big")]
+pub struct SeHdrConfV2 {
+    #[serde(with = "serde_hex_confidential_array", rename = "cck_hex")]
+    #[deku(
+        reader = "confidential_read_slice(deku::reader, endian)",
+        writer = "confidential_write_slice(cck, deku::writer, endian)"
+    )]
+    cck: Confidential<[u8; 32]>,
+    #[serde(with = "serde_hex_confidential_array", rename = "xts_hex")]
+    #[deku(
+        reader = "confidential_read_slice(deku::reader, endian)",
+        writer = "confidential_write_slice(xts, deku::writer, endian)"
+    )]
+    xts: Aes256XtsKey,
+    psw: PSW,
+    #[serde(with = "serde_hex_left_padded_u64", rename = "scf_hex")]
+    pub scf: u64,
+    #[serde(skip)]
+    #[deku(assert_eq = "0")]
+    noi: u32,
+    #[serde(skip)]
+    res2: u32,
+    #[serde(skip)]
+    #[deku(count = "noi")]
+    opt_items: Vec<u8>,
+}
+
+impl Zeroize for SeHdrConfV2 {
+    fn zeroize(&mut self) {
+        self.cck.zeroize();
+        self.xts.zeroize();
+        self.psw.zeroize();
+        self.scf.zeroize();
+        self.noi.zeroize();
+        self.res2.zeroize();
+        self.opt_items.zeroize();
+    }
+}
+
+impl Display for SeHdrConfV2 {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        writeln!(
+            f,
+            "secret control flags:\n{}",
+            SeHdrControlFlags::from_u64(self.scf, SeTarget::V2Max, false)
+        )?;
+
+        // Support verbose mode if the `alternate` (`{:#}`) flag is used.
+        if f.alternate() {
+            writeln!(f, "CCK: {:}", HexSlice::from(self.cck.value()))?;
+            writeln!(f, "XTS key: {:}", HexSlice::from(self.xts.value()))?;
+            let psw = display_indented(f, &self.psw, 2);
+            writeln!(f, "PSW:\n{psw}")?;
+        }
+        Ok(())
+    }
+}
+
+#[derive(Default, PartialEq, Eq, Debug, Clone, DekuRead, DekuWrite, Serialize, Deserialize)]
+#[deku(endian = "endian", ctx = "endian: Endian", ctx_default = "Endian::Big")]
+pub struct SeHdrTagV2 {
+    #[serde(with = "serde_hex_array", rename = "tag_hex")]
+    tag: [u8; SymKeyType::AES_256_GCM_TAG_LEN],
+}
+
+impl Display for SeHdrTagV2 {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        write!(f, "{:}", HexSlice::from(&self.tag))
+    }
+}
+
+mod ser_confidential_confv2 {
+    use pv::request::Confidential;
+    use serde::{Deserialize, Deserializer, Serialize, Serializer};
+
+    use super::SeHdrConfV2;
+
+    pub fn serialize<S: Serializer>(
+        encrypted: &Confidential<SeHdrConfV2>,
+        ser: S,
+    ) -> Result<S::Ok, S::Error> {
+        encrypted.value().serialize(ser)
+    }
+
+    pub fn deserialize<'de, D: Deserializer<'de>>(
+        deserializer: D,
+    ) -> Result<Confidential<SeHdrConfV2>, D::Error> {
+        let conf = SeHdrConfV2::deserialize(deserializer)?;
+        Ok(Confidential::new(conf))
+    }
+}
+
+/// Secure Execution Header definition
+#[derive(Debug, Clone, PartialEq, Eq, DekuRead, DekuWrite, Serialize, Deserialize)]
+#[deku(endian = "big")]
+pub struct SeHdrDataV2 {
+    #[serde(flatten)]
+    pub aad: SeHdrAadV2,
+    #[serde(flatten, with = "ser_confidential_confv2")]
+    #[deku(
+        reader = "confidential_read_sehdrconf_v2(deku::reader)",
+        writer = "confidential_write_sehdrconf_v2(data, deku::writer)"
+    )]
+    pub data: Confidential<SeHdrConfV2>,
+    #[serde(flatten)]
+    tag: SeHdrTagV2,
+}
+
+impl Display for SeHdrDataV2 {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        // Support verbose mode if the `alternate` (`{:#}`) flag is used.
+        if f.alternate() {
+            write!(f, "{:#}", self.aad)?;
+            write!(f, "{:#}", self.data.value())?;
+            writeln!(f, "GCM tag: {}", self.tag)?;
+        } else {
+            write!(f, "{}", self.aad)?;
+            write!(f, "{}", self.data.value())?;
+        }
+        Ok(())
+    }
+}
+
+/// Reads from a `reader` and creates a confidential `SeHdrConfV2`.
+///
+/// # Errors
+///
+/// This function will return an error if there was an I/O error or the
+/// `SeHdrConfV2` could not be constructed.
+fn confidential_read_sehdrconf_v2<R>(
+    reader: &mut Reader<R>,
+) -> Result<Confidential<SeHdrConfV2>, DekuError>
+where
+    R: std::io::Read + std::io::Seek,
+{
+    Ok(Confidential::new(SeHdrConfV2::from_reader_with_ctx(
+        reader,
+        (),
+    )?))
+}
+
+/// Writes a `Confidential<SeHdrConf1>` into this `writer`.
+///
+/// # Errors
+///
+/// This function will return an error if there was an I/O error.
+fn confidential_write_sehdrconf_v2<W>(
+    value: &Confidential<SeHdrConfV2>,
+    writer: &mut Writer<W>,
+) -> Result<(), DekuError>
+where
+    W: std::io::Write + std::io::Seek,
+{
+    value.value().to_writer(writer, ())
+}
+
+impl SeHdrDataV2 {
+    // For Linux kernel >= 7.0, this is 1 MiB
+    const MAX_SIZE: usize = 1024 * 1024;
+    const PCF_DEFAULT: u64 = 0x0;
+    const SCF_DEFAULT: u64 = 0x0;
+
+    /// Creates a new `SeHdrDataV2`. It initializes the CCK and IV with random
+    /// data.
+    ///
+    /// # Errors
+    ///
+    /// This function will return an error if there was not enough entropy to
+    /// create the random data or another error has occurred.
+    pub fn new(psw: PSW, components: ComponentMetadataV1) -> Result<Self> {
+        // Safety: The CCK is also 32 bytes large.
+        let cck = SymKey::random(SymKeyType::Aes256Gcm)?.try_into().unwrap();
+        let mut ret = Self {
+            aad: SeHdrAadV2 {
+                sehs: 0,
+                pcf: Self::PCF_DEFAULT,
+                ald: components.ald,
+                pld: components.pld,
+                tld: components.tld,
+                nep: components.nep,
+                sea: 0,
+                iv: random_array()?,
+                res1: 0,
+                nks: 0,
+                cust_pub_key: EcPubKeyCoordV1 { coord: [0_u8; 160] },
+                keyslots: vec![],
+            },
+            data: SeHdrConfV2 {
+                cck,
+                scf: Self::SCF_DEFAULT,
+                psw,
+                xts: components.key,
+                noi: 0,
+                res2: 0,
+                opt_items: vec![],
+            }
+            .into(),
+            tag: SeHdrTagV2::default(),
+        };
+        let hdr_size = ret.size()?;
+        let phs = hdr_size.phs.try_into()?;
+        if phs > Self::MAX_SIZE {
+            return Err(Error::InvalidSeHdrTooLarge {
+                given: phs,
+                maximum: Self::MAX_SIZE,
+            });
+        }
+        ret.aad.sehs = phs.try_into()?;
+        ret.aad.sea = hdr_size.sea;
+        Ok(ret)
+    }
+
+    fn size(&self) -> Result<HdrSizesV2> {
+        let sea = bytesize_confidential(&self.data)?;
+        let mut phs = bytesize(&self.aad)?
+            .checked_add(size_of::<SeHdrCommon>())
+            .ok_or(Error::UnexpectedOverflow)?;
+        phs = phs
+            .checked_add(bytesize(&self.tag)?)
+            .ok_or(Error::UnexpectedOverflow)?;
+        phs = phs.checked_add(sea).ok_or(Error::UnexpectedOverflow)?;
+
+        Ok(HdrSizesV2 {
+            sea: sea.try_into()?,
+            phs: phs.try_into()?,
+        })
+    }
+
+    /// Return the expected size of an constructed `SeHdrDataV2` with `n` key
+    /// slots.
+    ///
+    /// # Errors
+    ///
+    /// This function will return an error if there was an arithmetic overflow
+    /// or.
+    pub fn expected_size(nks: usize) -> Result<usize> {
+        let cck = [0x0; 32].into();
+        let hdr = Self {
+            aad: SeHdrAadV2 {
+                sehs: 0,
+                pcf: Self::PCF_DEFAULT,
+                ald: [0x0; SHA_512_HASH_LEN],
+                pld: [0x0; SHA_512_HASH_LEN],
+                tld: [0x0; SHA_512_HASH_LEN],
+                nep: 0,
+                sea: 0,
+                iv: [0x0_u8; SymKeyType::AES_256_GCM_IV_LEN],
+                res1: 0,
+                nks: 0,
+                cust_pub_key: EcPubKeyCoordV1 { coord: [0_u8; 160] },
+                keyslots: vec![],
+            },
+            data: SeHdrConfV2 {
+                cck,
+                scf: Self::SCF_DEFAULT,
+                psw: PSW { mask: 0, addr: 0 },
+                xts: [0x0; SymKeyType::AES_256_XTS_KEY_LEN].into(),
+                noi: 0,
+                res2: 0,
+                opt_items: vec![],
+            }
+            .into(),
+            tag: SeHdrTagV2::default(),
+        };
+        let hdr_size: usize = hdr.size()?.phs.try_into().unwrap();
+
+        hdr_size
+            .checked_add(
+                size_of::<BinaryKeySlotV2>()
+                    .checked_mul(nks)
+                    .ok_or(Error::UnexpectedOverflow)?,
+            )
+            .ok_or(Error::UnexpectedOverflow)
+    }
+}
+
+impl UvDataPlainTrait for SeHdrDataV2 {
+    type C = SeHdrBinV2;
+}
+impl SeHdrPlainTrait for SeHdrDataV2 {}
+
+impl KeyExchangeBuilderTrait for SeHdrDataV2 {
+    type AeadKeyType = SymKey;
+    type PrivateKeyType = PKeyRef<Private>;
+    type TargetKeyType = HybridPKey;
+
+    fn generate_private_key(&self) -> Result<PKey<Private>> {
+        Ok(gen_ec_key(Nid::SECP521R1)?)
+    }
+
+    fn set_cust_public_key(&mut self, key: &PKeyRef<Private>) -> Result<()> {
+        self.aad.cust_pub_key = TryInto::<EcPubKeyCoord>::try_into(key)?.into();
+        Ok(())
+    }
+
+    fn clear_keyslots(&mut self) -> Result<()> {
+        let old_nks: usize = self.aad.nks.try_into().unwrap();
+        let keyslot_bin_size = size_of::<BinaryKeySlotV2>();
+        self.aad.keyslots.clear();
+        self.aad.nks = 0;
+        self.aad.sehs -= u32::try_from(
+            old_nks
+                .checked_mul(keyslot_bin_size)
+                .ok_or(Error::UnexpectedOverflow)?,
+        )
+        .unwrap();
+        Ok(())
+    }
+
+    fn add_keyslot(
+        &mut self,
+        hostkey: &Self::TargetKeyType,
+        aead_key: &Self::AeadKeyType,
+        priv_key: &Self::PrivateKeyType,
+    ) -> Result<()> {
+        let keyslot = KeyslotV2::new(hostkey.clone());
+        let keyslot_bin = keyslot.encrypt(aead_key.value(), priv_key)?.try_into()?;
+        let keyslot_bin_size = u32::try_from(size_of_val(&keyslot_bin)).unwrap();
+        self.aad.keyslots.push(keyslot_bin);
+        self.aad.nks = self
+            .aad
+            .nks
+            .checked_add(1)
+            .ok_or(Error::UnexpectedOverflow)?;
+        self.aad.sehs = self
+            .aad
+            .sehs
+            .checked_add(keyslot_bin_size)
+            .ok_or(Error::UnexpectedOverflow)?;
+        Ok(())
+    }
+}
+
+impl KeyExchangeTrait for SeHdrDataV2 {
+    type PrivateKeyType = PKey<Private>;
+    type TargetKeyType = HybridPKey;
+
+    fn cust_pub_key(&mut self) -> Result<PKey<Public>> {
+        self.aad.cust_pub_key()
+    }
+
+    fn key_type(&self) -> SymKeyType {
+        self.aad.key_type()
+    }
+
+    fn contains_hash<H: AsRef<[u8]>>(&self, hash: H) -> bool {
+        self.aad.contains_hash(hash)
+    }
+
+    fn contains<K>(&self, key: K) -> Result<bool>
+    where
+        K: AsRef<Self::TargetKeyType>,
+    {
+        self.aad.contains(key)
+    }
+}
+
+impl SeHdrConfBuilderTrait for SeHdrDataV2 {
+    fn set_psw(&mut self, psw: &PSW) {
+        self.data.value_mut().psw = psw.clone();
+    }
+
+    fn set_scf(&mut self, scf: &EffectiveControlFlags<SeHdrFlag>) -> Result<()> {
+        self.data.value_mut().scf = scf.to_u64();
+        Ok(())
+    }
+
+    fn set_cck(&mut self, cck: Confidential<Vec<u8>>) -> Result<()> {
+        self.data.value_mut().cck = cck.try_into()?;
+        Ok(())
+    }
+
+    fn generate_cck(&self) -> Result<SymKey> {
+        Ok(SymKey::random(SymKeyType::Aes256Gcm)?)
+    }
+}
+
+impl SeHdrPubBuilderTrait for SeHdrDataV2 {
+    fn set_pcf(&mut self, pcf: &EffectiveControlFlags<SeHdrFlag>) -> Result<()> {
+        self.aad.pcf = pcf.to_u64();
+        Ok(())
+    }
+
+    fn set_components(&mut self, meta: ComponentMetadata) -> Result<()> {
+        let ComponentMetadataV1 {
+            ald,
+            pld,
+            tld,
+            nep,
+            key,
+        }: ComponentMetadataV1 = meta
+            .try_into()
+            .map_err(|_| Error::InvalidComponentMetadata)?;
+        self.data.value_mut().xts = key;
+        self.aad.ald = ald;
+        self.aad.pld = pld;
+        self.aad.tld = tld;
+        self.aad.nep = nep;
+        Ok(())
+    }
+}
+
+#[derive(Debug, Clone, PartialEq, Eq, DekuRead, DekuWrite, Serialize, Deserialize)]
+#[deku(endian = "big")]
+pub struct SeHdrBinV2 {
+    #[serde(flatten)]
+    pub aad: SeHdrAadV2,
+    #[serde(with = "serde_base64", rename = "cipher_data_b64")]
+    #[deku(bytes_read = "aad.sea")]
+    pub data: Vec<u8>,
+    #[serde(flatten)]
+    pub tag: SeHdrTagV2,
+}
+
+impl Display for SeHdrBinV2 {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        // Support verbose mode if the `alternate` (`{:#}`) flag is used.
+        if f.alternate() {
+            write!(f, "{:#}", self.aad)?;
+            writeln!(
+                f,
+                "encrypted data: {:#}",
+                BASE64_STANDARD.encode(&self.data)
+            )?;
+            writeln!(f, "GCM tag: {:#}", self.tag)?;
+        } else {
+            write!(f, "{}", self.aad)?;
+        }
+        Ok(())
+    }
+}
+
+impl SeHdrBinV2 {
+    pub fn new(d: &[u8]) -> Result<Self> {
+        Self::try_from_data(d)
+    }
+
+    pub(crate) fn try_from_data(data: &[u8]) -> Result<Self> {
+        let (_rest, val) = Self::from_bytes((data, 0))?;
+        Ok(val)
+    }
+}
+
+impl UvDataTrait for SeHdrBinV2 {
+    type P = SeHdrDataV2;
+}
+impl SeHdrTrait for SeHdrBinV2 {}
+
+impl AeadCipherTrait for SeHdrBinV2 {
+    fn aead_key_type(&self) -> SymKeyType {
+        self.key_type()
+    }
+
+    fn iv(&self) -> &[u8] {
+        &self.aad.iv
+    }
+
+    fn aead_tag_size(&self) -> usize {
+        SymKeyType::AES_256_GCM_TAG_LEN
+    }
+}
+
+impl AeadCipherBuilderTrait for SeHdrDataV2 {
+    fn set_iv(&mut self, iv: &[u8]) -> Result<()> {
+        self.aad.iv = try_copy_slice_to_array(iv)?;
+        Ok(())
+    }
+}
+
+impl KeyExchangeTrait for SeHdrBinV2 {
+    type PrivateKeyType = PKey<Private>;
+    type TargetKeyType = HybridPKey;
+
+    fn cust_pub_key(&mut self) -> Result<PKey<Public>> {
+        self.aad.cust_pub_key()
+    }
+
+    fn key_type(&self) -> SymKeyType {
+        self.aad.key_type()
+    }
+
+    fn contains_hash<H: AsRef<[u8]>>(&self, hash: H) -> bool {
+        self.aad.contains_hash(hash)
+    }
+
+    fn contains<K>(&self, key: K) -> Result<bool>
+    where
+        K: AsRef<Self::TargetKeyType>,
+    {
+        self.aad.contains(key)
+    }
+}
+
+impl AeadDataTrait for SeHdrBinV2 {
+    fn aad(&self) -> Result<Vec<u8>> {
+        serialize_to_bytes(&self.aad)
+    }
+
+    fn data(&self) -> Vec<u8> {
+        self.data.to_owned()
+    }
+
+    fn tag(&self) -> Vec<u8> {
+        serialize_to_bytes(&self.tag).unwrap()
+    }
+}
+
+impl AeadPlainDataTrait for SeHdrDataV2 {
+    fn aad(&self) -> Result<Vec<u8>> {
+        serialize_to_bytes(&self.aad)
+    }
+
+    fn data(&self) -> Result<Confidential<Vec<u8>>> {
+        Ok(serialize_to_bytes(self.data.value())?.into())
+    }
+
+    fn tag(&self) -> Vec<u8> {
+        serialize_to_bytes(&self.tag).unwrap()
+    }
+}
+
+impl AeadCipherTrait for SeHdrDataV2 {
+    fn aead_key_type(&self) -> SymKeyType {
+        self.aad.key_type()
+    }
+
+    fn iv(&self) -> &[u8] {
+        &self.aad.iv
+    }
+
+    fn aead_tag_size(&self) -> usize {
+        SymKeyType::AES_256_GCM_TAG_LEN
+    }
+}
+
+#[cfg(test)]
+mod tests {
+
+    use std::io::Cursor;
+
+    use pv::request::HostKey;
+    use pv::test_utils::get_test_key_and_cert_hybrid;
+
+    use super::*;
+    use crate::pv_utils::{BuilderTrait, SeHdr, SeHdrBuilder, SeHdrVersion};
+
+    #[test]
+    fn iv_keys_auto_generation_test() {
+        let (_, host_key1, host_key2) = get_test_key_and_cert_hybrid();
+        let host_keys = [HostKey::V2(
+            HybridPKey::new(
+                host_key1.public_key().unwrap(),
+                host_key2.public_key().unwrap(),
+            )
+            .unwrap(),
+        )];
+        let mut builder = SeHdrBuilder::new(
+            SeHdrVersion::V2,
+            PSW {
+                addr: 1234,
+                mask: 5678,
+            },
+            ComponentMetadataV1 {
+                ald: [0x1; SHA_512_HASH_LEN],
+                pld: [0x2; SHA_512_HASH_LEN],
+                tld: [0x3; SHA_512_HASH_LEN],
+                nep: 1,
+                key: Confidential::new([0x0_u8; SymKeyType::AES_256_XTS_KEY_LEN]),
+            },
+        )
+        .expect("should not fail");
+        builder.add_hostkeys(&host_keys).expect("should not fail");
+    }
+
+    #[test]
+    fn chain_test() {
+        let (_, host_key1, host_key2) = get_test_key_and_cert_hybrid();
+        let host_keys = [HostKey::V2(
+            HybridPKey::new(
+                host_key1.public_key().unwrap(),
+                host_key2.public_key().unwrap(),
+            )
+            .unwrap(),
+        )];
+        let xts_key = Confidential::new([0x3; SymKeyType::AES_256_XTS_KEY_LEN]);
+        let meta = ComponentMetadataV1 {
+            ald: [0x1; SHA_512_HASH_LEN],
+            pld: [0x2; SHA_512_HASH_LEN],
+            tld: [0x3; SHA_512_HASH_LEN],
+            nep: 3,
+            key: xts_key,
+        };
+        let cck: Confidential<Vec<u8>> = [0x42; 32].to_vec().into();
+        let psw = PSW {
+            addr: 1234,
+            mask: 5678,
+        };
+
+        let mut builder = SeHdrBuilder::new(SeHdrVersion::V2, psw.clone(), meta.clone())
+            .expect("should not fail");
+
+        builder
+            .add_hostkeys(&host_keys)
+            .expect("should not fail")
+            .with_components(meta.clone())
+            .expect("should not fail")
+            .with_cck(cck.clone())
+            .expect("should not fail");
+        let prot_key = builder.prot_key().to_owned();
+        let bin = builder.build().expect("should not fail");
+
+        let reader = Cursor::new(bin.as_bytes().expect("should not fail"));
+        let hdr = SeHdr::try_from_io(reader).unwrap();
+
+        let hdr_plain = hdr.decrypt(&prot_key).unwrap();
+        assert_eq!(hdr_plain.common.version, SeHdrVersion::V2);
+        let hdr_data_v2: SeHdrDataV2 = hdr_plain.data.try_into().expect("should not fail");
+        assert_eq!(meta.ald, hdr_data_v2.aad.ald);
+        assert_eq!(meta.pld, hdr_data_v2.aad.pld);
+        assert_eq!(meta.tld, hdr_data_v2.aad.tld);
+        assert_eq!(psw, hdr_data_v2.data.value().psw);
+        assert_eq!(cck.value(), hdr_data_v2.data.value().cck.value());
+    }
+
+    #[test]
+    fn max_size_sehdr_test() {
+        const MAX_HOST_KEYS: usize = 623; // since Linux kernel 7.0
+
+        let (_, host_key1, host_key2) = get_test_key_and_cert_hybrid();
+        let pub_key = HostKey::V2(
+            HybridPKey::new(
+                host_key1.public_key().unwrap(),
+                host_key2.public_key().unwrap(),
+            )
+            .unwrap(),
+        );
+        let host_keys_max: Vec<_> = (0..MAX_HOST_KEYS).map(|_| pub_key.clone()).collect();
+        let too_many_host_keys: Vec<_> = (0..MAX_HOST_KEYS + 1).map(|_| pub_key.clone()).collect();
+        let xts_key = Confidential::new([0x3; SymKeyType::AES_256_XTS_KEY_LEN]);
+        let meta = ComponentMetadataV1 {
+            ald: [0x1; SHA_512_HASH_LEN],
+            pld: [0x2; SHA_512_HASH_LEN],
+            tld: [0x3; SHA_512_HASH_LEN],
+            nep: 3,
+            key: xts_key,
+        };
+        let psw = PSW {
+            addr: 1234,
+            mask: 5678,
+        };
+
+        let mut builder = SeHdrBuilder::new(SeHdrVersion::V2, psw.clone(), meta.clone())
+            .expect("should not fail");
+        builder
+            .add_hostkeys(&host_keys_max)
+            .expect("should not fail")
+            .with_components(meta.clone())
+            .expect("should not fail");
+        let bin = builder.build().expect("should not fail");
+        assert_eq!(bin.common.version, SeHdrVersion::V2);
+        let hdr_v2: SeHdrBinV2 = bin.data.try_into().expect("should not fail");
+        assert_eq!(hdr_v2.aad.sehs, 1047200); // since kernel 7.0
+
+        let mut builder = SeHdrBuilder::new(SeHdrVersion::V2, psw.clone(), meta.clone())
+            .expect("should not fail");
+
+        builder
+            .add_hostkeys(&too_many_host_keys)
+            .expect("should not fail")
+            .with_components(meta)
+            .expect("should not fail");
+        assert!(matches!(builder.build(), Err(Error::InvalidSeHdr)));
+    }
+
+    #[test]
+    fn roundtrip_se_hdr_tag_v2_json() {
+        let tag = SeHdrTagV2 {
+            tag: [0x42; SymKeyType::AES_256_GCM_TAG_LEN],
+        };
+
+        let json = serde_json::to_string(&tag).expect("should serialize");
+        assert_eq!(json, "{\"tag_hex\":\"42424242424242424242424242424242\"}");
+        let deserialized: SeHdrTagV2 = serde_json::from_str(&json).expect("should deserialize");
+
+        assert_eq!(tag, deserialized);
+    }
+
+    #[test]
+    fn roundtrip_se_hdr_conf_v2_json() {
+        let conf = SeHdrConfV2 {
+            cck: Confidential::new([0x11; 32]),
+            xts: Confidential::new([0x22; SymKeyType::AES_256_XTS_KEY_LEN]),
+            psw: PSW {
+                addr: 0x1000,
+                mask: 0x2000,
+            },
+            scf: 0x42,
+            noi: 0,
+            res2: 0,
+            opt_items: vec![],
+        };
+
+        let json = serde_json::to_string(&conf).expect("should serialize");
+        assert_eq!(json, "{\"cck_hex\":\"1111111111111111111111111111111111111111111111111111111111111111\",\"xts_hex\":\"22222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222\",\"psw\":{\"mask_hex\":\"0000000000002000\",\"addr_hex\":\"0000000000001000\"},\"scf_hex\":\"0000000000000042\"}");
+        let deserialized: SeHdrConfV2 = serde_json::from_str(&json).expect("should deserialize");
+
+        assert_eq!(conf, deserialized);
+    }
+
+    #[test]
+    fn roundtrip_se_hdr_aad_v2_json() {
+        let aad = SeHdrAadV2 {
+            sehs: 1024,
+            iv: [0x33; SymKeyType::AES_256_GCM_IV_LEN],
+            res1: 0,
+            nks: 2,
+            sea: 512,
+            nep: 10,
+            pcf: 0x100,
+            cust_pub_key: EcPubKeyCoordV1 { coord: [0x44; 160] },
+            pld: [0x55; SHA_512_HASH_LEN],
+            ald: [0x66; SHA_512_HASH_LEN],
+            tld: [0x77; SHA_512_HASH_LEN],
+            keyslots: vec![],
+        };
+
+        let json = serde_json::to_string(&aad).expect("should serialize");
+        assert_eq!(json, "{\"sehs\":1024,\"iv_hex\":\"333333333333333333333333\",\"nks\":2,\"sea\":512,\"nep\":10,\"pcf_hex\":\"0000000000000100\",\"cust_pub_key\":{\"coord_hex\":\"44444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444\"},\"pld_hex\":\"55555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555\",\"ald_hex\":\"66666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666\",\"tld_hex\":\"77777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777\",\"keyslots\":[]}");
+        let deserialized: SeHdrAadV2 = serde_json::from_str(&json).expect("should deserialize");
+
+        assert_eq!(aad, deserialized);
+    }
+
+    #[test]
+    fn roundtrip_se_hdr_bin_v2_json() {
+        let bin = SeHdrBinV2 {
+            aad: SeHdrAadV2 {
+                sehs: 1024,
+                iv: [0x33; SymKeyType::AES_256_GCM_IV_LEN],
+                res1: 0,
+                nks: 0,
+                sea: 64,
+                nep: 10,
+                pcf: 0x100,
+                cust_pub_key: EcPubKeyCoordV1 { coord: [0x44; 160] },
+                pld: [0x55; SHA_512_HASH_LEN],
+                ald: [0x66; SHA_512_HASH_LEN],
+                tld: [0x77; SHA_512_HASH_LEN],
+                keyslots: vec![],
+            },
+            data: vec![0x88; 64],
+            tag: SeHdrTagV2 {
+                tag: [0x99; SymKeyType::AES_256_GCM_TAG_LEN],
+            },
+        };
+
+        let json = serde_json::to_string(&bin).expect("should serialize");
+        assert_eq!(json, "{\"sehs\":1024,\"iv_hex\":\"333333333333333333333333\",\"nks\":0,\"sea\":64,\"nep\":10,\"pcf_hex\":\"0000000000000100\",\"cust_pub_key\":{\"coord_hex\":\"44444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444\"},\"pld_hex\":\"55555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555\",\"ald_hex\":\"66666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666\",\"tld_hex\":\"77777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777\",\"keyslots\":[],\"cipher_data_b64\":\"iIiIiIiIiIiIiIiIiIiIiIiIiIiIiIiIiIiIiIiIiIiIiIiIiIiIiIiIiIiIiIiIiIiIiIiIiIiIiIiIiIiIiA==\",\"tag_hex\":\"99999999999999999999999999999999\"}");
+        let deserialized: SeHdrBinV2 = serde_json::from_str(&json).expect("should deserialize");
+
+        assert_eq!(bin, deserialized);
+    }
+}

rust/pvimg/src/pv_utils/se_hdr/keys.rs

@@ -10,7 +10,7 @@ use deku::ctx::Endian;
 use deku::{DekuRead, DekuWrite};
 use openssl::hash::{hash, MessageDigest};
 use openssl::pkey::{PKey, PKeyRef, Public};
-use pv::request::EcPubKeyCoord;
+use pv::request::{EcPubKeyCoord, HybridPKey};
 use pv::static_assert;
 use serde::{Deserialize, Serialize};
 use utils::HexSlice;
@@ -30,6 +30,20 @@ pub fn phkh_v1<T: AsRef<PKeyRef<Public>>>(key: T) -> Result<[u8; 32]> {
     try_copy_slice_to_array(&binding)
 }
 
+/// Try to hash the public hybrid EC + ML-KEM key.
+///
+/// # Errors
+///
+/// This function will return an error if OpenSSL could not hash the key.
+pub fn phkh_v2(key: &HybridPKey) -> Result<[u8; 64]> {
+    let mut buf: Vec<u8> = vec![];
+    let phk: EcPubKeyCoord = key.ec_key().try_into()?;
+    buf.extend_from_slice(phk.as_ref());
+    buf.extend_from_slice(&key.mlkem_key().raw_public_key()?);
+    let binding = hash(MessageDigest::sha512(), &buf)?;
+    try_copy_slice_to_array(&binding)
+}
+
 #[derive(Debug, Clone, PartialEq, Eq, DekuRead, DekuWrite, Serialize, Deserialize)]
 #[deku(endian = "endian", ctx = "endian: Endian", ctx_default = "Endian::Big")]
 pub struct EcPubKeyCoordV1 {
@@ -112,6 +126,58 @@ impl TryFrom<Vec<u8>> for BinaryKeySlotV1 {
     }
 }
 
+#[repr(C)]
+#[derive(Debug, PartialEq, Eq, Clone, DekuRead, DekuWrite, Serialize, Deserialize)]
+#[deku(endian = "endian", ctx = "endian: Endian", ctx_default = "Endian::Big")]
+/// Binary key slot v1
+pub struct BinaryKeySlotV2 {
+    #[serde(with = "serde_hex_array", rename = "phkh_hex")]
+    /// Public host key hash
+    pub phkh: [u8; 64],
+    #[serde(with = "serde_hex_array", rename = "wrpk_hex")]
+    /// Wrapper key
+    pub wrpk: [u8; 32],
+    /// Tag
+    #[serde(with = "serde_hex_array", rename = "kst_hex")]
+    pub kst: [u8; 16],
+    #[serde(with = "serde_hex_array", rename = "kc_hex")]
+    /// Ciohertext
+    pub kc: [u8; 1568],
+}
+static_assert!(size_of::<BinaryKeySlotV2>() == 1680);
+
+impl Display for BinaryKeySlotV2 {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        write!(f, "target key hash: {:}", HexSlice::from(&self.phkh))
+    }
+}
+
+impl Default for BinaryKeySlotV2 {
+    fn default() -> Self {
+        BinaryKeySlotV2 {
+            phkh: [0_u8; 64],
+            wrpk: [0_u8; 32],
+            kst: [0_u8; 16],
+            kc: [0_u8; 1568],
+        }
+    }
+}
+
+impl TryFrom<Vec<u8>> for BinaryKeySlotV2 {
+    type Error = Error;
+
+    fn try_from(value: Vec<u8>) -> Result<Self, Self::Error> {
+        let data: [u8; 1680] = try_copy_slice_to_array(&value)?;
+        let bin = Self {
+            phkh: data[..64].try_into().unwrap(),
+            wrpk: data[64..96].try_into().unwrap(),
+            kst: data[96..112].try_into().unwrap(),
+            kc: data[112..].try_into().unwrap(),
+        };
+        Ok(bin)
+    }
+}
+
 #[cfg(test)]
 mod serde_tests {
     use super::*;

rust/pvimg/src/pv_utils/uv_keys.rs

@@ -7,7 +7,7 @@ use std::io::{BufRead, BufReader, Read};
 use enum_dispatch::enum_dispatch;
 use pv::misc::decode_hex;
 
-use super::try_copy_slice_to_array;
+use super::{try_copy_slice_to_array, KeyExchangeTrait, SeHdr};
 use crate::error::{Error, Result};
 
 /// The `enum_dispatch` macros needs at least one local trait to be implemented.
@@ -41,15 +41,116 @@ impl UvKeyHashV1 {
     }
 }
 
+use std::fmt::{self, Display};
+use std::ops::{Index, IndexMut};
+
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub enum UvKeyHashV1Kind {
+    PCHKH,
+    PBHKH,
+    PCHHKH,
+    PBHHKH,
+}
+
+impl Display for UvKeyHashV1Kind {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        match self {
+            Self::PCHKH => write!(f, "Classical Host key hash"),
+            Self::PBHKH => write!(f, "Backup classical host key hash"),
+            Self::PCHHKH => write!(f, "Hybrid host key hash"),
+            Self::PBHHKH => write!(f, "Backup hybrid host key hash"),
+        }
+    }
+}
+
+/// Index into the UV key hash array.
+///
+/// The indices follow the UV specification layout:
+/// - 0: PCHKH (Classical host key hash)
+/// - 1: PBHKH (Backup classical host key hash)
+/// - 2-3: Reserved for future use
+/// - 4: PCHHKH (Hybrid host key hash)
+/// - 5: PBHHKH (Backup hybrid host key hash)
+/// - 6-14: Reserved for future use
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub struct UvKeyHashIdx(u8);
+
+impl UvKeyHashIdx {
+    pub const PCHKH: Self = Self(0);
+    pub const PBHKH: Self = Self(1);
+    pub const PCHHKH: Self = Self(4);
+    pub const PBHHKH: Self = Self(5);
+
+    pub fn index(self) -> usize {
+        self.0 as usize
+    }
+
+    pub fn kind(self) -> Option<UvKeyHashV1Kind> {
+        match self.0 {
+            0 => Some(UvKeyHashV1Kind::PCHKH),
+            1 => Some(UvKeyHashV1Kind::PBHKH),
+            4 => Some(UvKeyHashV1Kind::PCHHKH),
+            5 => Some(UvKeyHashV1Kind::PBHHKH),
+            _ => None,
+        }
+    }
+}
+
+impl TryFrom<usize> for UvKeyHashIdx {
+    type Error = ();
+
+    fn try_from(value: usize) -> Result<Self, Self::Error> {
+        match value {
+            0..=14 => Ok(Self(value as u8)),
+            _ => Err(()),
+        }
+    }
+}
+
 #[derive(Debug, PartialEq, Eq)]
 pub struct UvKeyHashesV1 {
-    pub pchkh: UvKeyHashV1,
-    pub pbhkh: UvKeyHashV1,
-    pub res: [UvKeyHashV1; 13],
+    pub hashes: [UvKeyHashV1; 15],
+}
+
+impl Index<UvKeyHashIdx> for UvKeyHashesV1 {
+    type Output = UvKeyHashV1;
+
+    fn index(&self, pos: UvKeyHashIdx) -> &Self::Output {
+        &self.hashes[pos.index()]
+    }
+}
+
+impl IndexMut<UvKeyHashIdx> for UvKeyHashesV1 {
+    fn index_mut(&mut self, pos: UvKeyHashIdx) -> &mut Self::Output {
+        &mut self.hashes[pos.index()]
+    }
+}
+
+#[derive(Debug)]
+pub struct MatchingUvKeyHash<'a> {
+    pub idx: UvKeyHashIdx,
+    pub hash: &'a UvKeyHashV1,
+}
+
+impl UvKeyHashesV1 {
+    pub fn matching_hashes(&self, hdr: &SeHdr) -> Vec<MatchingUvKeyHash<'_>> {
+        self.hashes
+            .iter()
+            .enumerate()
+            .filter(|(_, hash)| hdr.contains_hash(hash))
+            .filter_map(|(idx, hash)| {
+                Some(MatchingUvKeyHash {
+                    idx: idx.try_into().ok()?,
+                    hash,
+                })
+            })
+            .collect()
+    }
 }
 
 impl UvKeyHashV1 {
-    pub const UV_KEY_HASH_NULL: Self = Self([0x0_u8; 32]);
+    pub const UV_KEY_HASH_SIZE: usize = 32;
+    pub const UV_KEY_HASH_NULL: Self = Self([0x0_u8; Self::UV_KEY_HASH_SIZE]);
 }
 
 impl AsRef<[u8]> for UvKeyHashV1 {
@@ -107,9 +208,8 @@ impl UvKeyHashesV1 {
             return Err(Error::InvalidUvKeyHashes);
         }
 
-        let [pchkh, pbhkh, res @ ..]: [UvKeyHashV1; 15] =
-            hashes.try_into().map_err(|_| Error::InvalidUvKeyHashes)?;
-        Ok(Self { pchkh, pbhkh, res })
+        let hashes: [UvKeyHashV1; 15] = hashes.try_into().map_err(|_| Error::InvalidUvKeyHashes)?;
+        Ok(Self { hashes })
     }
 }
 
@@ -141,21 +241,18 @@ mod tests {
 0000000000000000000000000000000000000000000000000000000000000000
 ";
         let result = UvKeyHashesV1::read_from_io(Cursor::new(data)).expect("should not fail");
-        assert_eq!(
-            result,
-            UvKeyHashesV1 {
-                pchkh: UvKeyHashV1::new(
-                    decode_hex("0b729fd62241b339840d61b964a06bb6a1fd4976d9ebea2b4fb48d44de3a2461")
-                        .unwrap()
-                )
-                .unwrap(),
-                pbhkh: UvKeyHashV1::new(
-                    decode_hex("8ec6bc2f77d5d6474b1417cf0a8c914f576245a5b9bb0eefacc7b821483ece7d")
-                        .unwrap()
-                )
-                .unwrap(),
-                res: [UvKeyHashV1::UV_KEY_HASH_NULL; 13],
-            }
-        );
+        let mut exp_hashes = [UvKeyHashV1::UV_KEY_HASH_NULL; 15];
+        exp_hashes[0] = UvKeyHashV1::new(
+            decode_hex("0b729fd62241b339840d61b964a06bb6a1fd4976d9ebea2b4fb48d44de3a2461").unwrap(),
+        )
+        .unwrap();
+
+        exp_hashes[1] = UvKeyHashV1::new(
+            decode_hex("8ec6bc2f77d5d6474b1417cf0a8c914f576245a5b9bb0eefacc7b821483ece7d").unwrap(),
+        )
+        .unwrap();
+
+        let uv_hashes = UvKeyHashesV1 { hashes: exp_hashes };
+        assert_eq!(result, uv_hashes);
     }
 }

rust/pvimg/src/pv_utils/uvdata.rs

@@ -3,12 +3,10 @@
 // Copyright IBM Corp. 2024
 
 use enum_dispatch::enum_dispatch;
-use pv::request::openssl::pkey::{PKey, PKeyRef, Private, Public};
-use pv::request::{
-    decrypt_aead, derive_aes256_gcm_key, encrypt_aead, Confidential, SymKey, SymKeyType,
-};
+use pv::request::openssl::pkey::{PKey, Public};
+use pv::request::{decrypt_aead, encrypt_aead, Confidential, SymKey, SymKeyType};
 
-use super::se_hdr::{SeHdrBinV1, SeHdrData, SeHdrVersioned};
+use super::se_hdr::{SeHdrBinV1, SeHdrBinV2, SeHdrData, SeHdrVersioned};
 use crate::pv_utils::error::{Error, Result};
 use crate::pv_utils::serializing::deserialize_from_bytes;
 
@@ -54,15 +52,19 @@ pub trait AeadPlainDataTrait {
 }
 
 /// Key exchange related methods
-#[enum_dispatch]
 pub trait KeyExchangeTrait {
-    /// Checks if a public key was used.
+    type TargetKeyType;
+    type PrivateKeyType: ToOwned;
+
+    /// Checks if a public target key was used.
     ///
     /// # Errors
     ///
     /// This function will return an error if the public key cannot be converted
     /// into a hash.
-    fn contains<K: AsRef<PKeyRef<Public>>>(&self, key: K) -> Result<bool>;
+    fn contains<K>(&self, key: K) -> Result<bool>
+    where
+        K: AsRef<Self::TargetKeyType>;
 
     /// Checks if the hash of a public key was used.
     fn contains_hash<H: AsRef<[u8]>>(&self, hash: H) -> bool;
@@ -79,22 +81,24 @@ pub trait KeyExchangeTrait {
     /// Returns the key type of the exchanged key.
     fn key_type(&self) -> SymKeyType;
 
-    /// Derive the key.
-    ///
-    /// # Errors
-    ///
-    /// This function will return an error if there is no customer public key is
-    /// available or the key derivations fails.
-    fn derive_key<K: AsRef<PKeyRef<Private>>>(&mut self, other_priv_key: K) -> Result<SymKey> {
-        match self.key_type() {
-            SymKeyType::Aes256Gcm => Ok(derive_aes256_gcm_key(
-                other_priv_key.as_ref(),
-                self.cust_pub_key()?.as_ref(),
-            )?
-            .into()),
-            _ => unreachable!("BUG"),
-        }
-    }
+    // TODO Implement it
+    // /// Derive the key.
+    // ///
+    // /// # Errors
+    // ///
+    // /// This function will return an error if there is no customer public key is
+    // /// available or the key derivations fails.
+    // fn derive_key<K>(&mut self, other_priv_key: K) -> Result<SymKey> where
+    // K: AsRef<Self::PrivateKeyType>{
+    //     match self.key_type() {
+    //         SymKeyType::Aes256Gcm =>
+    //             match Self::TargetKeyType {
+    //                 PKeyRef::<Public> => {todo!()},
+    //                 HybridPKey => {todo!()},
+    //             }
+    //         _ => unreachable!("BUG"),
+    //     }
+    // }
 }
 
 /// Trait to be used for plain UV data.

rust/pvimg/src/pv_utils/uvdata_builder.rs

@@ -2,13 +2,14 @@
 //
 // Copyright IBM Corp. 2024
 
+use std::fmt::Display;
+
 use enum_dispatch::enum_dispatch;
-use openssl::pkey::{PKey, PKeyRef, Private, Public};
+use openssl::pkey::{PKey, Private};
 use pv::request::{Confidential, SymKey};
 
 use super::Error;
 use crate::pv_utils::error::Result;
-use crate::pv_utils::se_hdr::SeHdrData;
 use crate::pv_utils::uvdata::{AeadCipherTrait, UvDataPlainTrait};
 
 #[enum_dispatch]
@@ -20,33 +21,33 @@ pub trait AeadCipherBuilderTrait: AeadCipherTrait {
 }
 
 /// Key exchange related methods
-#[enum_dispatch]
 pub trait KeyExchangeBuilderTrait {
+    type TargetKeyType: ToOwned;
+    type AeadKeyType: Display + std::fmt::Debug;
+    type PrivateKeyType: ToOwned;
+
     fn add_keyslot(
         &mut self,
-        hostkey: &PKeyRef<Public>,
-        aead_key: &SymKey,
-        priv_key: &PKeyRef<Private>,
+        hostkey: &Self::TargetKeyType,
+        aead_key: &Self::AeadKeyType,
+        priv_key: &Self::PrivateKeyType,
     ) -> Result<()>;
+
     fn clear_keyslots(&mut self) -> Result<()>;
+    // TODO How to handle PKey vs &PKeyRef?
     fn generate_private_key(&self) -> Result<PKey<Private>>;
-    fn set_cust_public_key(&mut self, key: &PKeyRef<Private>) -> Result<()>;
+    fn set_cust_public_key(&mut self, key: &Self::PrivateKeyType) -> Result<()>;
 }
 
-pub struct UvDataBuilder<
-    'a,
-    T: KeyExchangeBuilderTrait + AeadCipherBuilderTrait,
-    K = PKeyRef<Public>,
-    P = PKey<Private>,
-> {
+pub struct UvDataBuilder<T: KeyExchangeBuilderTrait + AeadCipherBuilderTrait> {
     pub(crate) expert_mode: bool,
-    pub(crate) prot_key: SymKey,
-    pub(crate) priv_key: P,
-    pub(crate) target_keys: Vec<&'a K>,
+    pub(crate) prot_key: T::AeadKeyType,
+    pub(crate) priv_key: T::PrivateKeyType,
+    pub(crate) target_keys: Vec<T::TargetKeyType>,
     pub(crate) plain_data: T,
 }
 
-impl<T: KeyExchangeBuilderTrait + AeadCipherBuilderTrait, K, P> UvDataBuilder<'_, T, K, P> {
+impl<T: KeyExchangeBuilderTrait + AeadCipherBuilderTrait> UvDataBuilder<T> {
     /// Enable expert mode - this is required for specifying PSW, etc.
     pub fn i_know_what_i_am_doing(&mut self) {
         self.expert_mode = true;
@@ -54,7 +55,7 @@ impl<T: KeyExchangeBuilderTrait + AeadCipherBuilderTrait, K, P> UvDataBuilder<'_
 }
 
 impl<T: std::fmt::Debug + KeyExchangeBuilderTrait + AeadCipherBuilderTrait + UvDataPlainTrait>
-    std::fmt::Debug for UvDataBuilder<'_, T>
+    std::fmt::Debug for UvDataBuilder<T>
 {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
         f.debug_struct("UvDataBuilder")
@@ -65,15 +66,18 @@ impl<T: std::fmt::Debug + KeyExchangeBuilderTrait + AeadCipherBuilderTrait + UvD
     }
 }
 
-impl<'a, T: KeyExchangeBuilderTrait + AeadCipherBuilderTrait> UvDataBuilder<'a, T> {
-    pub fn add_hostkeys<P: AsRef<PKeyRef<Public>>>(
-        &mut self,
-        hostkeys: &'a [P],
-    ) -> Result<&mut Self> {
+impl<T> UvDataBuilder<T>
+where
+    T: KeyExchangeBuilderTrait<AeadKeyType = SymKey> + AeadCipherBuilderTrait,
+{
+    pub fn add_hostkeys(&mut self, hostkeys: &[T::TargetKeyType]) -> Result<&mut Self>
+    where
+        T::TargetKeyType: Clone,
+    {
         for hk in hostkeys {
             self.plain_data
-                .add_keyslot(hk.as_ref(), &self.prot_key, &self.priv_key)?;
-            self.target_keys.push(hk.as_ref());
+                .add_keyslot(hk, &self.prot_key, &self.priv_key)?;
+            self.target_keys.push(hk.clone());
         }
 
         Ok(self)
@@ -89,9 +93,9 @@ impl<'a, T: KeyExchangeBuilderTrait + AeadCipherBuilderTrait> UvDataBuilder<'a,
 
     fn update_target_key_slots(&mut self) -> Result<()> {
         self.plain_data.clear_keyslots()?;
-        for hk in &self.target_keys {
+        for hostkey in &self.target_keys {
             self.plain_data
-                .add_keyslot(hk, &self.prot_key, &self.priv_key)?;
+                .add_keyslot(hostkey, &self.prot_key, &self.priv_key)?;
         }
         Ok(())
     }
@@ -100,6 +104,7 @@ impl<'a, T: KeyExchangeBuilderTrait + AeadCipherBuilderTrait> UvDataBuilder<'a,
         if !self.expert_mode {
             return Err(Error::NonExpertMode);
         }
+        // TODO Implement TryFrom<...> ?!
         let key = SymKey::try_from_data(self.plain_data.aead_key_type(), data)?;
         self.prot_key = key;
         self.update_target_key_slots()?;
@@ -107,23 +112,26 @@ impl<'a, T: KeyExchangeBuilderTrait + AeadCipherBuilderTrait> UvDataBuilder<'a,
         Ok(self)
     }
 
-    pub fn with_priv_key(&mut self, priv_key: &PKeyRef<Private>) -> Result<&mut Self> {
+    pub fn with_priv_key(&mut self, priv_key: &T::PrivateKeyType) -> Result<&mut Self>
+    where
+        T::PrivateKeyType: Clone,
+    {
         if !self.expert_mode {
             return Err(Error::NonExpertMode);
         }
         self.plain_data.set_cust_public_key(priv_key)?;
-        self.priv_key = priv_key.to_owned();
+        self.priv_key = priv_key.clone();
         self.update_target_key_slots()?;
 
         Ok(self)
     }
 
-    pub const fn prot_key(&self) -> &SymKey {
+    pub const fn prot_key(&self) -> &<T as KeyExchangeBuilderTrait>::AeadKeyType {
         &self.prot_key
     }
 
-    pub fn priv_key(&self) -> &PKeyRef<Private> {
-        self.priv_key.as_ref()
+    pub fn priv_key(&self) -> &<T as KeyExchangeBuilderTrait>::PrivateKeyType {
+        &self.priv_key
     }
 }
 

rust/pvimg/src/se_img.rs

@@ -10,17 +10,14 @@ use std::rc::Rc;
 use anyhow::{anyhow, Context, Result};
 use deku::DekuContainerRead;
 use log::debug;
-use openssl::pkey::{PKey, Public};
 use pv::misc::read_file;
-use pv::request::Confidential;
+use pv::request::{Confidential, HostKey};
 use pvimg::error::Error;
 use pvimg::misc::{round_up, serialize_to_bytes, ShortPsw, PSW, PSW_MASK_BA, PSW_MASK_EA};
 use pvimg::secured_comp::{
     ComponentTrait, Interval, Layout, SecuredComponent, SecuredComponentBuilder,
 };
-use pvimg::uvdata::{
-    BuilderTrait, PlaintextControlFlagsV1, SeHdrBuilder, SeHdrVersion, SecretControlFlagsV1,
-};
+use pvimg::uvdata::{BuilderTrait, EffectiveControlFlags, SeHdrBuilder, SeHdrFlag, SeHdrVersion};
 
 use crate::se_img_comps::ipib::Ipib;
 use crate::se_img_comps::kernel::S390Kernel;
@@ -33,9 +30,9 @@ use crate::se_img_comps::{
 };
 
 pub struct SeHdrArgs<'a> {
-    pub keys: &'a [PKey<Public>],
-    pub pcf: &'a PlaintextControlFlagsV1,
-    pub scf: &'a SecretControlFlagsV1,
+    pub keys: &'a [HostKey],
+    pub pcf: &'a EffectiveControlFlags<SeHdrFlag>,
+    pub scf: &'a EffectiveControlFlags<SeHdrFlag>,
     pub cck: &'a Option<(PathBuf, Confidential<Vec<u8>>)>,
     pub hdr_aead_key: &'a Option<(PathBuf, Confidential<Vec<u8>>)>,
     pub psw_addr: &'a Option<u64>,
@@ -95,7 +92,7 @@ impl<W: Write + Seek> SeImgBuilder<W> {
 
     /// Create a Secure Execution boot image builder
     #[allow(clippy::similar_names)]
-    pub(crate) fn new_v1(
+    pub(crate) fn new(
         mut writer: W,
         encryption: bool,
         legacy_expected_se_hdr_size: Option<usize>,
@@ -322,8 +319,25 @@ impl<W: Write + Seek> SeImgBuilder<W> {
     fn add_sehdr(&mut self, stage3b_entry: u64, sehdr_args: SeHdrArgs) -> Result<Rc<ImgComponent>> {
         let meta = self.builder.finish()?;
 
+        // Determine version from first key (all keys should be same version)
+        let version = match sehdr_args.keys.first() {
+            Some(HostKey::V1(_)) => SeHdrVersion::V1,
+            Some(HostKey::V2(_)) => SeHdrVersion::V2,
+            Some(_) => unreachable!("Unknown HostKey version"),
+            None => return Err(Error::NoHostkey.into()),
+        };
+
+        // Verify all hostkeys have the same version -> test if all or none are hybrid
+        let hybrid = matches!(version, SeHdrVersion::V2);
+        sehdr_args
+            .keys
+            .iter()
+            .all(|k| k.is_hybrid() == hybrid)
+            .then_some(())
+            .ok_or(pv::Error::MixedHostkeyVersions)?;
+
         let mut se_hdr_builder = SeHdrBuilder::new(
-            SeHdrVersion::V1,
+            version,
             PSW {
                 addr: sehdr_args.psw_addr.unwrap_or(stage3b_entry),
                 mask: Self::DEFAULT_INITIAL_PSW_MASK,
@@ -497,7 +511,7 @@ mod tests {
 
         let encryption = true;
         let mut writer = Cursor::new(Vec::new());
-        let ctx_res = SeImgBuilder::new_v1(&mut writer, encryption, None, None);
+        let ctx_res = SeImgBuilder::new(&mut writer, encryption, None, None);
         assert!(ctx_res.is_ok());
         let ctx = ctx_res.unwrap();
 

rust/pvsecret/src/cli.rs

@@ -7,7 +7,8 @@ use std::fmt::Display;
 use clap::error::ErrorKind::ValueValidation;
 use clap::{ArgGroup, Args, CommandFactory, Parser, Subcommand, ValueEnum, ValueHint};
 use utils::{
-    combined_path_opt, combined_path_req, CertificateOptions, DeprecatedVerbosityOptions, STDOUT,
+    combined_path_opt, combined_path_req, AutoOrExplicit, CertificateOptions,
+    DeprecatedVerbosityOptions, HkdVersion, ValueEnumDisplay, ValueEnumFromStr, STDOUT,
 };
 
 /// Manage secrets for IBM Secure Execution guests.
@@ -34,6 +35,28 @@ pub enum CreateSecretFlags {
     DisableDump,
 }
 
+/// Secure Execution add secret version for CLI
+#[derive(Debug, Clone, Copy, PartialEq, Eq, ValueEnum, ValueEnumDisplay, ValueEnumFromStr)]
+pub enum SecretVersion {
+    #[value(name = "1")]
+    /// Version 1 - uses traditional cryptographic keys
+    V1,
+    #[value(name = "2")]
+    /// Version 2 - uses hybrid (post-quantum) cryptographic keys
+    V2,
+}
+
+pub type SecretVersionSelection = AutoOrExplicit<SecretVersion>;
+
+impl From<SecretVersion> for HkdVersion {
+    fn from(val: SecretVersion) -> Self {
+        match val {
+            SecretVersion::V1 => Self::Classical,
+            SecretVersion::V2 => Self::Hybrid,
+        }
+    }
+}
+
 #[derive(Args, Debug)]
 #[command(group(ArgGroup::new("as-ext").args(["cck", "extension_secret"])),)]
 pub struct CreateSecretOpt {
@@ -173,6 +196,10 @@ pub struct CreateSecretOpt {
     /// Ignored for meta-secrets.
     #[arg(long)]
     pub use_name: bool,
+
+    /// Specify the Add-secret version to use.
+    #[arg(long = "secret-version", value_name = "VERSION", default_value_t = SecretVersion::V1)]
+    pub secret_version: SecretVersion,
 }
 
 #[derive(Subcommand, Debug)]

rust/pvsecret/src/cmd.rs

@@ -8,7 +8,7 @@ pub use create::create;
 mod verify;
 pub use verify::verify;
 
-pub const CMD_FN: &[&str] = &["+create", "+verify"];
+pub const CMD_FN: &[&str] = &["+create", "+verify", "+quantumsafe"];
 
 #[cfg(target_arch = "s390x")]
 mod add;

rust/pvsecret/src/cmd/create.rs

@@ -22,7 +22,10 @@ use serde_yaml::Value;
 use utils::get_writer_from_cli_file_arg;
 use zerocopy::IntoBytes;
 
-use crate::cli::{AddSecretType, CreateSecretFlags, CreateSecretOpt, RetrieveableSecretInpKind};
+use crate::cli::{
+    AddSecretType, CreateSecretFlags, CreateSecretOpt, RetrieveableSecretInpKind, SecretVersion,
+    SecretVersionSelection,
+};
 
 fn write_out<P, D>(path: &P, data: D, ctx: &str) -> pv::Result<()>
 where
@@ -83,6 +86,41 @@ fn retrievable(name: &str, secret: &str, kind: &RetrieveableSecretInpKind) -> Re
     .map_err(Error::from)
 }
 
+/// Auto-detect the Add-secret version based on the host keys.
+///
+/// Returns Two if any host key is a hybrid key, otherwise returns V1.
+fn auto_detect_version(host_keys: &[HostKey]) -> AddSecretVersion {
+    let use_hybrid_keys = host_keys.iter().any(|k: &HostKey| k.is_hybrid());
+    if use_hybrid_keys {
+        AddSecretVersion::Two
+    } else {
+        AddSecretVersion::One
+    }
+}
+
+impl From<SecretVersion> for AddSecretVersion {
+    fn from(value: SecretVersion) -> Self {
+        match value {
+            SecretVersion::V1 => Self::One,
+            SecretVersion::V2 => Self::Two,
+        }
+    }
+}
+
+/// Determine the attestation  version to use.
+///
+/// If an explicit version is provided via CLI, use that.
+/// Otherwise, auto-detect based on the host key types.
+fn determine_version(
+    cli_version: SecretVersionSelection,
+    host_keys: &[HostKey],
+) -> AddSecretVersion {
+    match cli_version {
+        SecretVersionSelection::Auto => auto_detect_version(host_keys),
+        SecretVersionSelection::Explicit(att_version) => att_version.into(),
+    }
+}
+
 /// Prepare an add-secret request
 pub fn create(opt: &CreateSecretOpt) -> Result<()> {
     if pv_guest_bit_set() {
@@ -94,17 +132,9 @@ pub fn create(opt: &CreateSecretOpt) -> Result<()> {
         }
     }
 
-    let mut asrcb = build_asrcb(opt)?;
+    let asrcb = build_asrcb(opt)?;
     debug!("Generated Add-secret request");
 
-    // Add host-key documents
-    opt.certificate_args
-        .get_verified_hkds("secret")?
-        .into_iter()
-        .for_each(|k| asrcb.add_hostkey(HostKey::V1(k)));
-
-    debug!("Added all host-keys");
-
     // build + encrypt the request
     let rq =
         ReqEncrCtx::random(SymKeyType::Aes256Gcm).context("Failed to generate random input")?;
@@ -168,9 +198,23 @@ fn build_asrcb(opt: &CreateSecretOpt) -> Result<AddSecretRequest> {
     debug!("FLAGS: {flags:x?}");
 
     let mut se_hdr = open_file(&opt.hdr)?;
-    let (tags, _) = BootHdrTags::from_se_image(&mut se_hdr)
+    let (boot_tags, _) = BootHdrTags::from_se_image(&mut se_hdr)
         .with_context(|| format!("Provided SE-header in '{}' is malformed", &opt.hdr))?;
-    let mut asrcb = AddSecretRequest::new(AddSecretVersion::One, secret, tags, flags);
+
+    let hkds = opt.certificate_args.get_verified_hkds(
+        "secret",
+        SecretVersionSelection::Explicit(opt.secret_version).map(|v| v.into()),
+    )?;
+    let secret_version =
+        determine_version(SecretVersionSelection::Explicit(opt.secret_version), &hkds);
+
+    let mut asrcb = AddSecretRequest::new(secret_version, secret, boot_tags, flags)?;
+
+    for k in hkds.into_iter() {
+        asrcb.add_hostkey(k)?
+    }
+
+    debug!("Added all host-keys");
 
     // Set CUID
     read_cuid(&mut asrcb, opt)?;

rust/pvverify/build.rs

@@ -6,7 +6,7 @@
 use std::env;
 use std::io::Error;
 
-use clap::{CommandFactory, ValueEnum};
+use clap::CommandFactory;
 use clap_complete::{generate_to, Shell};
 
 include!("src/cli.rs");

rust/pvverify/src/cli.rs

@@ -3,11 +3,36 @@
 // Copyright IBM Corp. 2025
 use std::sync::OnceLock;
 
-use clap::{ArgAction, Parser};
-use utils::CertificateOptions;
+use clap::{ArgAction, Parser, ValueEnum};
+use utils::{
+    AutoOrExplicit, AutoOrExplicitParser, CertificateOptions, HkdVersion, ValueEnumDisplay,
+    ValueEnumFromStr,
+};
 
 static VERSION: OnceLock<String> = OnceLock::new();
 
+/// Secure Execution HostKey version for CLI
+#[derive(Debug, Clone, Copy, PartialEq, Eq, ValueEnum, ValueEnumDisplay, ValueEnumFromStr)]
+pub enum HostKeyVersion {
+    #[value(name = "1")]
+    /// Version 1 - uses traditional cryptographic keys
+    V1,
+    #[value(name = "2")]
+    /// Version 2 - uses hybrid (post-quantum) cryptographic keys
+    V2,
+}
+pub type HostKeyVersionSelection = AutoOrExplicit<HostKeyVersion>;
+pub type HostKeyVersionSelectionParser = AutoOrExplicitParser<HostKeyVersion>;
+
+impl From<HostKeyVersion> for HkdVersion {
+    fn from(val: HostKeyVersion) -> Self {
+        match val {
+            HostKeyVersion::V1 => Self::Classical,
+            HostKeyVersion::V2 => Self::Hybrid,
+        }
+    }
+}
+
 #[derive(Parser, Debug)]
 #[command(long_version=ver(), disable_version_flag(true))]
 /// Tool to verify host-keys
@@ -23,6 +48,10 @@ pub struct CliOptions {
     #[arg(long, action=ArgAction::Version)]
     /// Print version information and exit.
     version: (),
+
+    /// Specify the Host-key version to use.
+    #[arg(long = "hkd-version", value_name = "VERSION", default_value_t = HostKeyVersionSelection::Auto, value_parser = HostKeyVersionSelectionParser::default())]
+    pub hkd_version: HostKeyVersionSelection,
 }
 
 fn ver() -> &'static str {

rust/pvverify/src/main.rs

@@ -14,9 +14,9 @@ static LOGGER: PvLogger = PvLogger;
 
 fn main() -> Result<()> {
     LOGGER.start(LevelFilter::Trace)?;
-    cli::CliOptions::parse()
-        .certificate_args
-        .get_verified_hkds("info")?;
+    let opt = cli::CliOptions::parse();
+    opt.certificate_args
+        .get_verified_hkds("info", opt.hkd_version.map(|v| v.into()))?;
     info!("Host-key documents verified.");
     Ok(())
 }

rust/utils/Cargo.toml

@@ -9,8 +9,11 @@ chrono = { version = "0.4.44", default-features = false, features = ["std"] }
 clap = { version ="4.6", features = ["derive", "wrap_help"] }
 libc = "0.2.186"
 log = { version = "0.4.29", features = ["std", "release_max_level_debug"] }
+openssl = "0.10"
 pv = { path = "../pv", package = "s390_pv" }
 serde = { version = "1.0.228"}
 
+utils_macros = { path = "../utils_macros" }
+
 [dev-dependencies]
 serde_json = "1.0.149"

rust/utils/src/cli.rs

@@ -1,17 +1,136 @@
 // SPDX-License-Identifier: MIT
 //
-// Copyright IBM Corp. 2023, 2024
-
+// Copyright IBM Corp.
+use std::fmt::Display;
 use std::io::{Read, Write};
+use std::marker::PhantomData;
 use std::path::{Path, PathBuf};
 use std::process::ExitCode;
+use std::str::FromStr;
 
-use clap::{ArgAction, ArgGroup, Args, Command, ValueHint};
-use log::{info, warn, LevelFilter};
-use pv::misc::{create_file, open_file, read_certs, read_file};
-use pv::request::openssl::pkey::{PKey, Public};
-use pv::request::HkdVerifier;
-use pv::{Error, Result};
+use clap::builder::{EnumValueParser, PossibleValue, TypedValueParser};
+use clap::{Arg, ArgAction, ArgGroup, Args, Command, ValueEnum, ValueHint};
+use log::LevelFilter;
+use pv::misc::{create_file, open_file};
+use pv::request::{HkdVerifier, HostKey};
+use pv::Result;
+
+use crate::hkd::{HkdLoader, HkdVersionSelection};
+
+/// Generic version selection for CLI
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub enum AutoOrExplicit<T> {
+    Auto,
+    Explicit(T),
+}
+
+impl<T> Display for AutoOrExplicit<T>
+where
+    T: Display,
+{
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        match self {
+            AutoOrExplicit::Auto => write!(f, "auto"),
+            AutoOrExplicit::Explicit(version) => write!(f, "{version}"),
+        }
+    }
+}
+
+impl<T> AutoOrExplicit<T> {
+    pub fn map<U, F>(self, f: F) -> AutoOrExplicit<U>
+    where
+        F: FnOnce(T) -> U,
+    {
+        match self {
+            AutoOrExplicit::Explicit(v) => AutoOrExplicit::Explicit(f(v)),
+            AutoOrExplicit::Auto => AutoOrExplicit::Auto,
+        }
+    }
+}
+
+impl<T> FromStr for AutoOrExplicit<T>
+where
+    T: FromStr<Err = String>,
+{
+    type Err = String;
+
+    fn from_str(s: &str) -> std::result::Result<Self, Self::Err> {
+        match s {
+            "auto" => Ok(Self::Auto),
+            _ => {
+                let v = T::from_str(s)?;
+                Ok(Self::Explicit(v))
+            }
+        }
+    }
+}
+
+#[derive(Clone)]
+pub struct AutoOrExplicitParser<T> {
+    _marker: PhantomData<T>,
+}
+
+impl<T> Default for AutoOrExplicitParser<T> {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
+impl<T> AutoOrExplicitParser<T> {
+    pub fn new() -> Self {
+        Self {
+            _marker: PhantomData,
+        }
+    }
+}
+
+impl<T> TypedValueParser for AutoOrExplicitParser<T>
+where
+    T: ValueEnum + FromStr + Clone + Send + Sync + Display + 'static,
+    T::Err: std::fmt::Display,
+{
+    type Value = AutoOrExplicit<T>;
+
+    fn parse_ref(
+        &self,
+        cmd: &Command,
+        arg: Option<&Arg>,
+        value: &std::ffi::OsStr,
+    ) -> Result<Self::Value, clap::error::Error> {
+        let s = value
+            .to_str()
+            .ok_or_else(|| clap::Error::new(clap::error::ErrorKind::InvalidUtf8).with_cmd(cmd))?;
+
+        if s == format!("{}", Self::Value::Auto) {
+            Ok(Self::Value::Auto)
+        } else {
+            let parsed = s.parse::<T>().map_err(|_e| {
+                let mut err =
+                    clap::error::Error::new(clap::error::ErrorKind::ValueValidation).with_cmd(cmd);
+                if let Some(arg) = arg {
+                    err.insert(
+                        clap::error::ContextKind::InvalidArg,
+                        clap::error::ContextValue::String(arg.to_string()),
+                    );
+                }
+                err.insert(
+                    clap::error::ContextKind::InvalidValue,
+                    clap::error::ContextValue::String(s.to_string()),
+                );
+                err
+            })?;
+
+            Ok(Self::Value::Explicit(parsed))
+        }
+    }
+    fn possible_values(&self) -> Option<Box<dyn Iterator<Item = PossibleValue> + '_>> {
+        let enum_parser = EnumValueParser::<T>::new();
+        let mut values = vec![PossibleValue::new("auto")];
+        values.extend(enum_parser.possible_values()?);
+
+        Some(Box::new(values.into_iter()))
+    }
+}
 
 /// CLI Argument collection for handling host-keys, IBM signing keys, and certificates.
 #[derive(Args, Debug, Clone, PartialEq, Eq, Default)]
@@ -108,40 +227,27 @@ impl CertificateOptions {
         }
     }
 
-    /// Read the host-keys specified and verifies them if required
+    /// Read the hybrid host-keys specified and verifies them if required
     ///
     /// - `protectee`: what you want to create. e.g. add-secret request or SE-image
+    /// - `version`: requested host-key document version
     ///
     /// # Error
     /// Returns an error if something went wrong during parsing the HKDs, the verification chain
     /// could not built, or when the verification
     /// failed.
-    pub fn get_verified_hkds(&self, protectee: &'static str) -> Result<Vec<PKey<Public>>> {
+    pub fn get_verified_hkds(
+        &self,
+        protectee: &'static str,
+        requested_version: HkdVersionSelection,
+    ) -> Result<Vec<HostKey>> {
         let hkds = &self.host_key_documents;
         let verifier = self.verifier(protectee)?;
 
         let mut res = Vec::with_capacity(hkds.len());
         for hkd in hkds {
-            let hk = read_file(hkd, "host-key document")?;
-            let certs = read_certs(&hk).map_err(|source| Error::HkdNotPemOrDer {
-                hkd: hkd.display().to_string(),
-                source,
-            })?;
-            if certs.is_empty() {
-                return Err(Error::NoHkdInFile(hkd.display().to_string()));
-            }
-            if certs.len() != 1 {
-                warn!(
-                    "The host-key document in '{}' contains more than one certificate!",
-                    hkd.display()
-                )
-            }
-
-            // Panic: len is == 1 -> unwrap will succeed/not panic
-            let c = certs.first().unwrap();
-            verifier.verify(c)?;
-            res.push(c.public_key()?);
-            info!("Use host-key document at '{}'", hkd.display());
+            let host_key = HkdLoader::load_and_verify(hkd, verifier.as_ref(), requested_version)?;
+            res.push(host_key);
         }
         Ok(res)
     }

rust/utils/src/hkd.rs

@@ -0,0 +1,162 @@
+// SPDX-License-Identifier: MIT
+//
+// Copyright IBM Corp.
+
+use std::fmt::{Display, Formatter};
+use std::path::Path;
+
+use log::{error, info};
+use openssl::nid::Nid;
+use openssl::pkey::{Id, KeyType, PKeyRef, Public};
+use openssl::x509::X509;
+use pv::misc::{read_certs, read_file};
+use pv::request::{HkdVerifier, HostKey, HybridPKey};
+use pv::{Error, Result};
+
+use crate::AutoOrExplicit;
+
+/// Host key document version
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub enum HkdVersion {
+    /// Version 1 - uses traditional cryptographic keys (1 certificate)
+    Classical,
+    /// Version 2 - uses hybrid (post-quantum) cryptographic keys (2 certificates)
+    Hybrid,
+}
+
+impl HkdVersion {
+    /// Get the required certificate count for this version
+    pub fn cert_count(self) -> usize {
+        match self {
+            HkdVersion::Classical => 1,
+            HkdVersion::Hybrid => 2,
+        }
+    }
+}
+
+impl Display for HkdVersion {
+    fn fmt(&self, f: &mut Formatter) -> std::fmt::Result {
+        match self {
+            HkdVersion::Classical => write!(f, "classical"),
+            HkdVersion::Hybrid => write!(f, "hybrid"),
+        }
+    }
+}
+
+pub type HkdVersionSelection = AutoOrExplicit<HkdVersion>;
+
+/// Helper struct for loading and verifying host-key documents
+pub struct HkdLoader;
+
+impl HkdLoader {
+    fn detect_version(path: &Path, certs: &Vec<X509>) -> Result<HkdVersion> {
+        info!("Auto-detecting version of the host-key document format");
+        Ok(match certs.len() {
+            1 => HkdVersion::Classical,
+            2 => HkdVersion::Hybrid,
+            _ => {
+                error!(
+                "Invalid host-key document '{}': it contains more than two certificates, which is not supported by any host-key document format.",
+                path.display()
+            );
+                return Err(Error::WrongNumberOfKeys(path.display().to_string()));
+            }
+        })
+    }
+
+    fn validate_version(path: &Path, certs: &Vec<X509>, version: HkdVersion) -> Result<HkdVersion> {
+        if certs.len() != version.cert_count() {
+            error!(
+                "Host-key document '{}' is not a {} host-key document.",
+                path.display(),
+                version,
+            );
+            return Err(Error::WrongNumberOfKeys(path.display().to_string()));
+        }
+        Ok(version)
+    }
+
+    fn is_ec_p521_key(key: &PKeyRef<Public>) -> bool {
+        if key.id() == Id::EC {
+            if let Ok(ec_key) = key.ec_key() {
+                let group = ec_key.group();
+                if let Some(curve_nid) = group.curve_name() {
+                    return curve_nid == Nid::SECP521R1;
+                }
+            }
+        }
+        false
+    }
+
+    fn is_mlkem1024_key(key: &PKeyRef<Public>) -> bool {
+        key.is_a(KeyType::ML_KEM_1024)
+    }
+
+    /// Load and verify a host-key document from a file
+    ///
+    /// # Errors
+    ///
+    /// This function will return an error if:
+    /// - The file cannot be read
+    /// - The content is not valid PEM or DER format
+    /// - The file contains no certificates or wrong number of certificates
+    /// - The public key cannot be extracted from the certificate(s)
+    /// - The verification fails
+    /// - Key types are invalid
+    pub fn load_and_verify<P: AsRef<Path>>(
+        path: P,
+        verifier: &dyn HkdVerifier,
+        requested_version: HkdVersionSelection,
+    ) -> Result<HostKey> {
+        let path = path.as_ref();
+        let hk = read_file(path, "host-key document")?;
+        let certs = read_certs(&hk).map_err(|source| Error::HkdNotPemOrDer {
+            hkd: path.display().to_string(),
+            source,
+        })?;
+
+        if certs.is_empty() {
+            return Err(Error::NoHkdInFile(path.display().to_string()));
+        }
+
+        let version = match requested_version {
+            HkdVersionSelection::Auto => Self::detect_version(path, &certs)?,
+            HkdVersionSelection::Explicit(version) => {
+                Self::validate_version(path, &certs, version)?
+            }
+        };
+
+        info!("Using {version} host-key document format");
+
+        // SAFETY: certs is guaranteed to be non-empty due to the check
+        let c1 = certs
+            .first()
+            .expect("Certificate list validated as non-empty");
+
+        if !Self::is_ec_p521_key(c1.public_key()?.as_ref()) {
+            return Err(Error::InvalidHkd(
+                "First key must be a EC-p521 key".to_string(),
+            ));
+        }
+        verifier.verify(c1)?;
+
+        match version {
+            HkdVersion::Classical => Ok(HostKey::V1(c1.public_key()?)),
+            HkdVersion::Hybrid => {
+                let c2 = &certs
+                    .get(1)
+                    .expect("Certificate list length was already checked");
+                if !Self::is_mlkem1024_key(c2.public_key()?.as_ref()) {
+                    return Err(Error::InvalidHkd(
+                        "Second key must be a ML-KEM 1024 key".to_string(),
+                    ));
+                }
+                verifier.verify(c2)?;
+                Ok(HostKey::V2(HybridPKey::new(
+                    c1.public_key()?,
+                    c2.public_key()?,
+                )?))
+            }
+        }
+    }
+}

rust/utils/src/lib.rs

@@ -7,21 +7,26 @@ mod cli;
 mod exit_code;
 mod file;
 mod hexslice;
+pub mod hkd;
 mod hostname;
 mod json;
 mod log;
 mod tmpfile;
 
 pub use ::log::LevelFilter;
+// Re-export procedural macros from utils_macros
+pub use utils_macros::{ControlFlag, ValueEnumDisplay, ValueEnumFromStr};
 
 pub use crate::cli::{
     combined_path_opt, combined_path_req, get_reader_from_cli_file_arg,
-    get_writer_from_cli_file_arg, print_cli_error, print_error, CertificateOptions,
-    DeprecatedVerbosityOptions, VerbosityOptions, STDIN, STDOUT,
+    get_writer_from_cli_file_arg, print_cli_error, print_error, AutoOrExplicit,
+    AutoOrExplicitParser, CertificateOptions, DeprecatedVerbosityOptions, VerbosityOptions, STDIN,
+    STDOUT,
 };
 pub use crate::exit_code::{docstring, ExitCodeDoc, ExitCodeTrait, ExitCodeVariantDoc};
 pub use crate::file::{AtomicFile, AtomicFileOperation};
 pub use crate::hexslice::HexSlice;
+pub use crate::hkd::{HkdLoader, HkdVersion, HkdVersionSelection};
 pub use crate::hostname::gethostname;
 pub use crate::json::S390ToolsMetaData;
 pub use crate::log::PvLogger;

rust/utils/tests/malformed_hkd.rs

@@ -0,0 +1,259 @@
+// SPDX-License-Identifier: MIT
+//
+// Copyright IBM Corp.
+
+//! Integration tests for malformed host key document handling
+
+use std::fs::{self, File};
+use std::io::Write;
+use std::path::PathBuf;
+
+use pv::request::NoVerifyHkd;
+use utils::{AutoOrExplicit, HkdLoader, HkdVersion, TemporaryDirectory};
+
+/// Path to test certificate assets
+fn cert_asset_path(name: &str) -> PathBuf {
+    PathBuf::from(env!("CARGO_MANIFEST_DIR"))
+        .parent()
+        .unwrap()
+        .join("pv/tests/assets/cert")
+        .join(name)
+}
+
+#[test]
+fn test_empty_hkd_file() {
+    let temp_dir = TemporaryDirectory::new().unwrap();
+    let file_path = temp_dir.path().join("empty.hkd");
+    File::create(&file_path).unwrap();
+
+    let result = HkdLoader::load_and_verify(&file_path, &NoVerifyHkd, AutoOrExplicit::Auto);
+    assert!(result.is_err(), "Empty HKD file should be rejected");
+
+    let err = result.unwrap_err();
+    assert!(
+        matches!(err, pv::Error::NoHkdInFile(_)),
+        "Expected NoHkdInFile error, got: {:?}",
+        err
+    );
+}
+
+#[test]
+fn test_invalid_pem_format() {
+    // Create a file with invalid PEM content
+    let temp_dir = TemporaryDirectory::new().unwrap();
+    let file_path = temp_dir.path().join("invalid.hkd");
+    let mut temp_file = File::create(&file_path).unwrap();
+    writeln!(temp_file, "-----BEGIN CERTIFICATE-----").unwrap();
+    writeln!(temp_file, "INVALID_BASE64_CONTENT!!!").unwrap();
+    writeln!(temp_file, "-----END CERTIFICATE-----").unwrap();
+    temp_file.flush().unwrap();
+
+    // Test that invalid PEM is properly rejected with HkdNotPemOrDer error
+    let result = HkdLoader::load_and_verify(&file_path, &NoVerifyHkd, AutoOrExplicit::Auto);
+    assert!(result.is_err(), "Invalid PEM format should be rejected");
+
+    let err = result.unwrap_err();
+    assert!(
+        matches!(err, pv::Error::HkdNotPemOrDer { .. }),
+        "Expected HkdNotPemOrDer error, got: {:?}",
+        err
+    );
+}
+
+#[test]
+fn test_wrong_number_of_certificates_v1() {
+    // Create a file with three valid certificates (invalid count for v1, expects 1)
+    let temp_dir = TemporaryDirectory::new().unwrap();
+    let file_path = temp_dir.path().join("wrong_count_v1.hkd");
+    let mut temp_file = File::create(&file_path).unwrap();
+
+    let cert1 = fs::read_to_string(cert_asset_path("host.crt")).unwrap();
+    let cert2 = fs::read_to_string(cert_asset_path("ibm.crt")).unwrap();
+    let cert3 = fs::read_to_string(cert_asset_path("root_ca.crt")).unwrap();
+
+    write!(temp_file, "{}{}{}", cert1, cert2, cert3).unwrap();
+    temp_file.flush().unwrap();
+
+    let result = HkdLoader::load_and_verify(
+        &file_path,
+        &NoVerifyHkd,
+        AutoOrExplicit::Explicit(HkdVersion::Classical),
+    );
+    assert!(
+        result.is_err(),
+        "Wrong number of certificates for v1 should be rejected"
+    );
+
+    let err = result.unwrap_err();
+    assert!(
+        matches!(err, pv::Error::WrongNumberOfKeys(_)),
+        "Expected WrongNumberOfKeys error, got: {:?}",
+        err
+    );
+}
+
+#[test]
+fn test_wrong_number_of_certificates_v2() {
+    // Use existing single certificate file directly (invalid count for v2, expects 2)
+    let file_path = cert_asset_path("host.crt");
+
+    // Test that wrong number of certificates is properly rejected with WrongNumberOfKeys error
+    let result = HkdLoader::load_and_verify(
+        &file_path,
+        &NoVerifyHkd,
+        AutoOrExplicit::Explicit(HkdVersion::Hybrid),
+    );
+    assert!(
+        result.is_err(),
+        "Wrong number of certificates for v2 should be rejected"
+    );
+
+    let err = result.unwrap_err();
+    assert!(
+        matches!(err, pv::Error::WrongNumberOfKeys(_)),
+        "Expected WrongNumberOfKeys error, got: {:?}",
+        err
+    );
+}
+
+#[test]
+fn test_corrupted_certificate() {
+    // Create a file with corrupted certificate data
+    let temp_dir = TemporaryDirectory::new().unwrap();
+    let file_path = temp_dir.path().join("corrupted.hkd");
+    let mut temp_file = File::create(&file_path).unwrap();
+    writeln!(temp_file, "-----BEGIN CERTIFICATE-----").unwrap();
+    writeln!(
+        temp_file,
+        "MIICdTCCAd6gAwIBAgIBADANBgkqhkiG9w0BAQsFADBQMQswCQYDVQQGEwJVUzEL"
+    )
+    .unwrap();
+    writeln!(temp_file, "CORRUPTED_DATA_HERE").unwrap();
+    writeln!(temp_file, "-----END CERTIFICATE-----").unwrap();
+    temp_file.flush().unwrap();
+
+    let result = HkdLoader::load_and_verify(&file_path, &NoVerifyHkd, AutoOrExplicit::Auto);
+    assert!(result.is_err(), "Corrupted certificate should be rejected");
+
+    let err = result.unwrap_err();
+    assert!(
+        matches!(err, pv::Error::HkdNotPemOrDer { .. }),
+        "Expected HkdNotPemOrDer error, got: {:?}",
+        err
+    );
+}
+
+#[test]
+fn test_wrong_key_type_v1() {
+    // Use RSA certificate instead of EC-p521 for v1 (should fail)
+    let file_path = PathBuf::from(env!("CARGO_MANIFEST_DIR"))
+        .parent()
+        .unwrap()
+        .join("pv/tests/assets/keys/rsa2048.crt");
+
+    let result = HkdLoader::load_and_verify(
+        &file_path,
+        &NoVerifyHkd,
+        AutoOrExplicit::Explicit(HkdVersion::Classical),
+    );
+    assert!(
+        result.is_err(),
+        "RSA key should be rejected for v1 (expects EC-p521)"
+    );
+
+    let err = result.unwrap_err();
+    if let pv::Error::InvalidHkd(msg) = err {
+        assert_eq!(
+            msg, "First key must be a EC-p521 key",
+            "Error message should indicate EC-p521 requirement"
+        );
+    } else {
+        panic!(
+            "Expected InvalidHkd error for wrong key type, got: {:?}",
+            err
+        );
+    }
+}
+
+#[test]
+fn test_wrong_key_type_v2() {
+    // Create a file with two RSA certificates instead of EC-p521 + ML-KEM for v2
+    let temp_dir = TemporaryDirectory::new().unwrap();
+    let file_path = temp_dir.path().join("wrong_key_v2.hkd");
+    let mut temp_file = File::create(&file_path).unwrap();
+
+    // Read two RSA certificates and concatenate them
+    let rsa_cert_path = PathBuf::from(env!("CARGO_MANIFEST_DIR"))
+        .parent()
+        .unwrap()
+        .join("pv/tests/assets/keys/rsa2048.crt");
+    let rsa_cert = fs::read_to_string(&rsa_cert_path).unwrap();
+
+    write!(temp_file, "{}{}", rsa_cert, rsa_cert).unwrap();
+    temp_file.flush().unwrap();
+
+    // Test that wrong key types are properly rejected with InvalidHkd error
+    let result = HkdLoader::load_and_verify(
+        &file_path,
+        &NoVerifyHkd,
+        AutoOrExplicit::Explicit(HkdVersion::Hybrid),
+    );
+    assert!(
+        result.is_err(),
+        "RSA keys should be rejected for v2 (expects EC-p521 + ML-KEM)"
+    );
+
+    let err = result.unwrap_err();
+    if let pv::Error::InvalidHkd(msg) = err {
+        assert_eq!(
+            msg, "First key must be a EC-p521 key",
+            "Error message should indicate EC-p521 requirement"
+        );
+    } else {
+        panic!(
+            "Expected InvalidHkd error for wrong key types, got: {:?}",
+            err
+        );
+    }
+}
+
+#[test]
+fn test_wrong_second_key_type_v2() {
+    // Create a file with EC-p521 + EC (wrong) instead of EC-p521 + ML-KEM for v2
+    let temp_dir = TemporaryDirectory::new().unwrap();
+    let file_path = temp_dir.path().join("wrong_second_key_v2.hkd");
+    let mut temp_file = File::create(&file_path).unwrap();
+
+    let ec_p521_cert = fs::read_to_string(cert_asset_path("host.crt")).unwrap();
+    let ec_cert_path = PathBuf::from(env!("CARGO_MANIFEST_DIR"))
+        .parent()
+        .unwrap()
+        .join("pv/tests/assets/keys/host.ec.crt");
+    let ec_cert = fs::read_to_string(&ec_cert_path).unwrap();
+
+    write!(temp_file, "{}{}", ec_p521_cert, ec_cert).unwrap();
+    temp_file.flush().unwrap();
+
+    let result = HkdLoader::load_and_verify(
+        &file_path,
+        &NoVerifyHkd,
+        AutoOrExplicit::Explicit(HkdVersion::Hybrid),
+    );
+    assert!(
+        result.is_err(),
+        "EC key should be rejected as second key for v2 (expects ML-KEM-1024)"
+    );
+
+    let err = result.unwrap_err();
+    if let pv::Error::InvalidHkd(msg) = err {
+        assert_eq!(
+            msg, "Second key must be a ML-KEM 1024 key",
+            "Error message should indicate ML-KEM-1024 requirement"
+        );
+    } else {
+        panic!(
+            "Expected InvalidHkd error for wrong second key type, got: {:?}",
+            err
+        );
+    }
+}

rust/utils_macros/Cargo.toml

@@ -0,0 +1,17 @@
+[package]
+name = "utils_macros"
+version = "0.12.0"
+edition.workspace = true
+license.workspace = true
+rust-version.workspace = true
+
+[lib]
+proc-macro = true
+
+[dependencies]
+syn = { version = "2.0", features = ["full", "extra-traits"] }
+quote = "1.0"
+proc-macro2 = "1.0"
+
+[dev-dependencies]
+clap = { version =  "4.6", features = ["derive"] }

rust/utils_macros/src/lib.rs

@@ -0,0 +1,297 @@
+// SPDX-License-Identifier: MIT
+//
+// Copyright IBM Corp.
+
+//! Procedural macros for the utils crate.
+//!
+//! This crate provides derive macros to reduce boilerplate in enum definitions,
+//! particularly for control flags.
+
+use proc_macro::TokenStream;
+use quote::quote;
+use syn::{parse_macro_input, Data, DeriveInput, Fields, Lit, Meta, MetaList};
+
+/// Derive macro for control flag enums.
+///
+/// This macro generates implementations for `Display`, `IntoEnumIterator`, and `ControlFlagTrait`.
+/// It supports the `#[flag(display = "...", value = N)]` attribute to specify custom display
+/// strings and discriminant values.
+///
+/// # Example
+///
+/// ```
+/// use utils_macros::ControlFlag;
+///
+/// /// Trait for enums that can be iterated over.
+/// pub trait IntoEnumIterator: Sized {
+///     /// Returns an iterator over all variants of the enum.
+///     fn iter() -> impl Iterator<Item = Self>;
+/// }
+///
+/// /// Trait for control flags that provide bit position information.
+/// pub trait ControlFlagTrait {
+///     /// Returns the bit position for this flag.
+///     fn bit_position(self) -> u8;
+/// }
+///
+/// #[derive(ControlFlag)]
+/// pub enum PcfV1 {
+///     #[flag(display = "Confidential dump support", value = 34)]
+///     ConfidentialDump,
+///
+///     #[flag(display = "V1-specific flag", value = 35)]
+///     V1OnlyFlag,
+/// }
+/// ```
+#[proc_macro_derive(ControlFlag, attributes(flag))]
+pub fn derive_control_flag(input: TokenStream) -> TokenStream {
+    let input = parse_macro_input!(input as DeriveInput);
+    let name = &input.ident;
+
+    let variants = match &input.data {
+        Data::Enum(data) => &data.variants,
+        _ => panic!("ControlFlag can only be derived for enums"),
+    };
+
+    // Extract variant information
+    let mut variant_names = Vec::new();
+    let mut variant_displays = Vec::new();
+    let mut variant_values = Vec::new();
+
+    for variant in variants {
+        if !matches!(variant.fields, Fields::Unit) {
+            panic!("ControlFlag only supports unit variants");
+        }
+
+        let variant_name = &variant.ident;
+        variant_names.push(variant_name);
+
+        // Parse the #[flag(...)] attribute
+        let mut display_str = variant_name.to_string();
+        let mut value: Option<u8> = None;
+
+        for attr in &variant.attrs {
+            if attr.path().is_ident("flag") {
+                // Try to parse as MetaList
+                if let Meta::List(MetaList { tokens, .. }) = &attr.meta {
+                    // Parse the tokens inside the list
+                    let parser = syn::meta::parser(|meta| {
+                        if meta.path.is_ident("display") {
+                            let val = meta.value()?;
+                            let lit: Lit = val.parse()?;
+                            if let Lit::Str(s) = lit {
+                                display_str = s.value();
+                            }
+                        } else if meta.path.is_ident("value") {
+                            let val = meta.value()?;
+                            let lit: Lit = val.parse()?;
+                            if let Lit::Int(i) = lit {
+                                value = Some(i.base10_parse()?);
+                            }
+                        }
+                        Ok(())
+                    });
+
+                    let _ = syn::parse::Parser::parse2(parser, tokens.clone());
+                }
+            }
+        }
+
+        if value.is_none() {
+            panic!(
+                "ControlFlag variant {} must have a value attribute",
+                variant_name
+            );
+        }
+
+        variant_displays.push(display_str);
+        variant_values.push(value.unwrap());
+    }
+
+    let expanded = quote! {
+        impl #name {
+            /// Returns the bit position value for this flag.
+            pub const fn flag_value(&self) -> u8 {
+                match self {
+                    #(Self::#variant_names => #variant_values),*
+                }
+            }
+        }
+
+        impl ControlFlagTrait for #name {
+            fn bit_position(self) -> u8 {
+                self.flag_value()
+            }
+        }
+
+        impl std::fmt::Display for #name {
+            fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+                write!(
+                    f,
+                    "{}",
+                    match self {
+                        #(Self::#variant_names => #variant_displays),*
+                    }
+                )
+            }
+        }
+
+        impl IntoEnumIterator for #name {
+            fn iter() -> impl Iterator<Item = Self> {
+                [
+                    #(Self::#variant_names),*
+                ]
+                .into_iter()
+            }
+        }
+    };
+
+    TokenStream::from(expanded)
+}
+
+/// Derive `std::fmt::Display` for enums implementing `clap::ValueEnum`.
+///
+/// This macro generates a `Display` implementation that delegates to
+/// `ValueEnum::to_possible_value()`, ensuring that the formatted output
+/// matches the CLI representation used by clap (e.g. for help text,
+/// completions, and parsing).
+///
+/// # Behavior
+///
+/// - Uses the canonical CLI name of each variant (as defined by `#[value(name = "...")]` or the
+///   default casing).
+/// - Fails at runtime if a variant is marked with `#[value(skip)]` and therefore has no CLI
+///   representation.
+///
+/// # Example
+///
+/// ```rust
+/// use clap::ValueEnum;
+/// use utils_macros::ValueEnumDisplay;
+///
+/// #[derive(ValueEnum, ValueEnumDisplay, Clone)]
+/// enum Mode {
+///     #[value(name = "very-fast")]
+///     Fast,
+///
+///     #[value(name = "slow")]
+///     Slow,
+/// }
+///
+/// assert_eq!(Mode::Fast.to_string(), "very-fast");
+/// ```
+///
+/// # Rationale
+///
+/// clap requires `Display` for features like `default_value_t`. However,
+/// `ValueEnum` already defines the canonical string representation via
+/// `to_possible_value()`. This derive avoids duplicating those strings
+/// and guarantees consistency between parsing, help output, and display.
+///
+/// # Panics
+///
+/// Panics if called on a variant with `#[value(skip)]`, as such variants
+/// have no associated CLI representation.
+///
+/// # See also
+///
+/// - [`clap::ValueEnum`]
+/// - [`clap::builder::PossibleValue`]
+#[proc_macro_derive(ValueEnumDisplay)]
+pub fn derive_value_enum_display(input: TokenStream) -> TokenStream {
+    let input = parse_macro_input!(input as DeriveInput);
+    let name = input.ident;
+
+    let expanded = quote! {
+        impl std::fmt::Display for #name {
+            fn fmt(
+                &self,
+                f: &mut std::fmt::Formatter<'_>,
+            ) -> std::fmt::Result {
+                let value = self
+                    .to_possible_value()
+                    .expect("skipped ValueEnum variant cannot be displayed");
+
+                write!(f, "{}", value.get_name())
+            }
+        }
+    };
+
+    expanded.into()
+}
+
+/// Derives a `std::str::FromStr` implementation for enums implementing
+/// [`clap::ValueEnum`].
+///
+/// This macro generates a `FromStr` implementation that delegates to
+/// [`ValueEnum::from_str`], ensuring that parsing behavior is identical
+/// to clap's CLI parsing.
+///
+/// # Behavior
+///
+/// - Parses input strings using the canonical CLI representation defined by `ValueEnum` (including
+///   `#[value(name = "...")]` and aliases).
+/// - Supports the same parsing semantics as clap (e.g. case sensitivity, if enabled).
+/// - Returns a human-readable error if parsing fails.
+///
+/// # Example
+///
+/// ```rust
+/// use clap::ValueEnum;
+/// use utils_macros::ValueEnumFromStr;
+///
+/// #[derive(ValueEnum, ValueEnumFromStr, Clone, Debug, PartialEq)]
+/// enum Mode {
+///     #[value(name = "fast")]
+///     Fast,
+///
+///     #[value(name = "slow")]
+///     Slow,
+/// }
+///
+/// assert_eq!("fast".parse::<Mode>().unwrap(), Mode::Fast);
+/// assert!("invalid".parse::<Mode>().is_err());
+/// ```
+///
+/// # Rationale
+///
+/// clap's [`ValueEnum`] trait already defines the canonical mapping
+/// between strings and enum variants. This derive avoids duplicating
+/// that logic in manual `FromStr` implementations and guarantees that
+/// CLI parsing and programmatic parsing remain consistent.
+///
+/// # Errors
+///
+/// Returns an error if the input does not match any of the allowed values
+/// defined by `ValueEnum`.
+///
+/// # See also
+///
+/// - [`clap::ValueEnum`]
+/// - [`std::str::FromStr`]
+#[proc_macro_derive(ValueEnumFromStr)]
+pub fn derive_value_enum_from_str(input: TokenStream) -> TokenStream {
+    let input = parse_macro_input!(input as DeriveInput);
+    let name = input.ident;
+
+    let expanded = quote! {
+        impl std::str::FromStr for #name {
+            type Err = String;
+
+            fn from_str(s: &str) -> Result<Self, Self::Err> {
+                <Self as clap::ValueEnum>::from_str(s, false).map_err(|_| {
+                    let possible = <Self as clap::ValueEnum>::value_variants()
+                        .iter()
+                        .filter_map(|v| v.to_possible_value())
+                        .map(|v| v.get_name().to_string())
+                        .collect::<Vec<_>>()
+                        .join(", ");
+
+                    format!("invalid value '{}', expected one of: {}", s, possible)
+                })
+            }
+        }
+    };
+
+    expanded.into()
+}

rust/utils_macros/tests/integration_tests.rs

@@ -0,0 +1,247 @@
+// SPDX-License-Identifier: MIT
+//
+// Copyright IBM Corp.
+
+//! Integration tests for the ControlFlag derive macro.
+
+mod test_helpers;
+
+use test_helpers::{ControlFlagTrait, IntoEnumIterator};
+use utils_macros::ControlFlag;
+
+// Test enum for basic functionality
+#[derive(ControlFlag, Debug, Clone, Copy, PartialEq, Eq)]
+enum TestFlag {
+    #[flag(display = "first flag", value = 1)]
+    First,
+    #[flag(display = "second flag", value = 2)]
+    Second,
+}
+
+// Test enum with multiple variants
+#[derive(ControlFlag, Debug, Clone, Copy, PartialEq, Eq)]
+enum MultiFlag {
+    #[flag(display = "flag 1", value = 10)]
+    Flag1,
+    #[flag(display = "flag 2", value = 20)]
+    Flag2,
+    #[flag(display = "flag 3", value = 30)]
+    Flag3,
+    #[flag(display = "flag 4", value = 40)]
+    Flag4,
+    #[flag(display = "flag 5", value = 50)]
+    Flag5,
+}
+
+// Test enum with non-sequential values
+#[derive(ControlFlag, Debug, Clone, Copy, PartialEq, Eq)]
+enum SparseFlag {
+    #[flag(display = "low bit", value = 1)]
+    Low,
+    #[flag(display = "high bit", value = 63)]
+    High,
+    #[flag(display = "middle bit", value = 32)]
+    Middle,
+}
+
+// Test enum with edge case display strings
+#[derive(ControlFlag, Debug, Clone, Copy, PartialEq, Eq)]
+enum EdgeCaseFlag {
+    #[flag(display = "simple", value = 1)]
+    Simple,
+    #[flag(display = "with spaces and punctuation!", value = 2)]
+    WithSpaces,
+    #[flag(display = "UPPERCASE", value = 3)]
+    Uppercase,
+    #[flag(display = "with-dashes-and_underscores", value = 4)]
+    WithDashes,
+}
+
+// Test enum for Copy/Clone compatibility
+#[derive(ControlFlag, Copy, Clone, Debug, PartialEq, Eq)]
+enum CopyableFlag {
+    #[flag(display = "copyable", value = 1)]
+    Copyable,
+    #[flag(display = "another", value = 2)]
+    Another,
+}
+
+#[test]
+fn test_basic_derive() {
+    // Verify the macro successfully derives all required traits
+    let flag = TestFlag::First;
+
+    // Should compile and be accessible
+    let _ = flag.flag_value();
+    let _ = flag.bit_position();
+    let _ = format!("{}", flag);
+    let _ = TestFlag::iter();
+}
+
+#[test]
+fn test_display_trait() {
+    // Verify custom display strings are correctly used
+    assert_eq!(format!("{}", TestFlag::First), "first flag");
+    assert_eq!(format!("{}", TestFlag::Second), "second flag");
+}
+
+#[test]
+fn test_enum_iterator() {
+    // Verify iteration over all enum variants works correctly
+    let flags: Vec<TestFlag> = TestFlag::iter().collect();
+    assert_eq!(flags.len(), 2);
+    assert_eq!(flags[0], TestFlag::First);
+    assert_eq!(flags[1], TestFlag::Second);
+}
+
+#[test]
+fn test_control_flag_trait() {
+    // Verify bit_position() returns correct values
+    assert_eq!(TestFlag::First.bit_position(), 1);
+    assert_eq!(TestFlag::Second.bit_position(), 2);
+}
+
+#[test]
+fn test_flag_value_method() {
+    // Verify flag_value() returns correct bit positions
+    assert_eq!(TestFlag::First.flag_value(), 1);
+    assert_eq!(TestFlag::Second.flag_value(), 2);
+}
+
+#[test]
+fn test_multiple_variants() {
+    // Verify the macro handles enums with many variants
+
+    // Test iteration
+    let flags: Vec<MultiFlag> = MultiFlag::iter().collect();
+    assert_eq!(flags.len(), 5);
+    assert_eq!(flags[0], MultiFlag::Flag1);
+    assert_eq!(flags[1], MultiFlag::Flag2);
+    assert_eq!(flags[2], MultiFlag::Flag3);
+    assert_eq!(flags[3], MultiFlag::Flag4);
+    assert_eq!(flags[4], MultiFlag::Flag5);
+
+    // Test bit positions
+    assert_eq!(MultiFlag::Flag1.bit_position(), 10);
+    assert_eq!(MultiFlag::Flag2.bit_position(), 20);
+    assert_eq!(MultiFlag::Flag3.bit_position(), 30);
+    assert_eq!(MultiFlag::Flag4.bit_position(), 40);
+    assert_eq!(MultiFlag::Flag5.bit_position(), 50);
+
+    // Test display strings
+    assert_eq!(format!("{}", MultiFlag::Flag1), "flag 1");
+    assert_eq!(format!("{}", MultiFlag::Flag2), "flag 2");
+    assert_eq!(format!("{}", MultiFlag::Flag3), "flag 3");
+    assert_eq!(format!("{}", MultiFlag::Flag4), "flag 4");
+    assert_eq!(format!("{}", MultiFlag::Flag5), "flag 5");
+}
+
+#[test]
+fn test_non_sequential_values() {
+    // Verify the macro handles non-sequential bit position values
+    assert_eq!(SparseFlag::Low.bit_position(), 1);
+    assert_eq!(SparseFlag::High.bit_position(), 63);
+    assert_eq!(SparseFlag::Middle.bit_position(), 32);
+
+    // Verify iteration order matches declaration order
+    let flags: Vec<SparseFlag> = SparseFlag::iter().collect();
+    assert_eq!(flags.len(), 3);
+    assert_eq!(flags[0], SparseFlag::Low);
+    assert_eq!(flags[1], SparseFlag::High);
+    assert_eq!(flags[2], SparseFlag::Middle);
+}
+
+#[test]
+fn test_display_string_edge_cases() {
+    // Verify various display string formats work correctly
+    assert_eq!(format!("{}", EdgeCaseFlag::Simple), "simple");
+    assert_eq!(
+        format!("{}", EdgeCaseFlag::WithSpaces),
+        "with spaces and punctuation!"
+    );
+    assert_eq!(format!("{}", EdgeCaseFlag::Uppercase), "UPPERCASE");
+    assert_eq!(
+        format!("{}", EdgeCaseFlag::WithDashes),
+        "with-dashes-and_underscores"
+    );
+}
+
+#[test]
+fn test_trait_bounds() {
+    // Verify generated implementations work with common trait bounds
+
+    // Function that requires Display
+    fn requires_display<T: std::fmt::Display>(flag: T) -> String {
+        format!("{}", flag)
+    }
+
+    // Function that requires IntoEnumIterator
+    fn requires_iterator<T: IntoEnumIterator>() -> Vec<T> {
+        T::iter().collect()
+    }
+
+    // Test with TestFlag
+    let result = requires_display(TestFlag::First);
+    assert_eq!(result, "first flag");
+
+    let flags: Vec<TestFlag> = requires_iterator();
+    assert_eq!(flags.len(), 2);
+}
+
+#[test]
+fn test_copy_clone_compatibility() {
+    // Verify the macro works with Copy and Clone derives
+    let flag1 = CopyableFlag::Copyable;
+    let flag2 = flag1; // Copy
+    let flag3 = flag1; // Clone
+
+    assert_eq!(flag1, flag2);
+    assert_eq!(flag1, flag3);
+
+    // Verify all methods still work
+    assert_eq!(flag1.bit_position(), 1);
+    assert_eq!(flag2.flag_value(), 1);
+    assert_eq!(format!("{}", flag3), "copyable");
+}
+
+#[test]
+fn test_iterator_multiple_calls() {
+    // Verify iterator can be called multiple times
+    let iter1: Vec<TestFlag> = TestFlag::iter().collect();
+    let iter2: Vec<TestFlag> = TestFlag::iter().collect();
+
+    assert_eq!(iter1, iter2);
+    assert_eq!(iter1.len(), 2);
+}
+
+#[test]
+fn test_flag_value_const() {
+    // Verify flag_value() can be used in const contexts
+    const FLAG_VALUE: u8 = TestFlag::First.flag_value();
+    assert_eq!(FLAG_VALUE, 1);
+}
+
+#[test]
+fn test_all_variants_unique_values() {
+    // Verify all variants have unique bit positions
+    let flags: Vec<TestFlag> = TestFlag::iter().collect();
+    let values: Vec<u8> = flags.iter().map(|f| f.bit_position()).collect();
+
+    // Check uniqueness
+    for i in 0..values.len() {
+        for j in (i + 1)..values.len() {
+            assert_ne!(values[i], values[j], "Duplicate bit position found");
+        }
+    }
+}
+
+#[test]
+fn test_display_consistency() {
+    // Verify Display is consistent across multiple calls
+    let flag = TestFlag::First;
+    let display1 = format!("{}", flag);
+    let display2 = format!("{}", flag);
+
+    assert_eq!(display1, display2);
+    assert_eq!(display1, "first flag");
+}

rust/utils_macros/tests/test_helpers.rs

@@ -0,0 +1,17 @@
+// SPDX-License-Identifier: MIT
+//
+// Copyright IBM Corp.
+
+//! Helper traits and utilities for testing the ControlFlag derive macro.
+
+/// Trait for control flags that provide bit position information.
+pub trait ControlFlagTrait {
+    /// Returns the bit position for this flag.
+    fn bit_position(self) -> u8;
+}
+
+/// Trait for enums that can be iterated over.
+pub trait IntoEnumIterator: Sized {
+    /// Returns an iterator over all variants of the enum.
+    fn iter() -> impl Iterator<Item = Self>;
+}

scripts/dbginfo.sh

@@ -515,6 +515,7 @@ CMDS="${CMDS}\
   :lspci -vvv\
   :lstape\
   :smc_dbg\
+  :zpcimon --module-info --smart-log-raw\
   "
 
 # block device and other scsi device commands (in non alphabetical order)
@@ -629,7 +630,7 @@ NETWORK_CMDS="ip -br a\
   :nstat -az\
   :openssl engine # deprecated in OpenSSL 3.n\
   :openssl list --providers 2>/dev/null # redirect help on older systems\
-  :opticsmon --module-info\
+  :opticsmon --module-info\ # Now called zpcimon but kept for compatibility
   :route -n\
   "
 

systemd/Makefile

@@ -4,7 +4,7 @@ SYSTEM_UNITS = ttyrun-getty@.service iucvtty-login@.service \
                cpacfstatsd.service cpuplugd.service \
                dumpconf.service cpi.service \
                mon_fsstatd.service mon_procd.service \
-               opticsmon.service
+               zpcimon.service
 
 all:
 
@@ -19,6 +19,9 @@ install: system_units
 	  $(INSTALL) -g $(GROUP) -o $(OWNER) \
 	             -m 644 $$unit $(DESTDIR)$(SYSTEMDSYSTEMUNITDIR) ; \
 	done
+	# Make the legacy opticsmon.service a link to zpcimon.service
+	ln -sf zpcimon.service \
+		$(DESTDIR)$(SYSTEMDSYSTEMUNITDIR)/opticsmon.service
 
 else
 

systemd/zpcimon.service.in

@@ -1,5 +1,5 @@
 #
-# Systemd unit for mon_fsstatd (monitor z/VM guest file systems)
+# Systemd unit for zpcimon PCI NIC optical module monitoring
 #
 # Copyright IBM Corp. 2024
 #
@@ -9,11 +9,11 @@
 
 [Unit]
 Description=Monitor health of directly attached PCI NIC optical modules
-# Documentation=man:opticsmon
+# Documentation=man:zpcimon
 
 [Service]
 Type=exec
-ExecStart=@usrsbin_path@/opticsmon --send-report --monitor --interval 86400
+ExecStart=@usrsbin_path@/zpcimon --send-report --monitor --format jsonl --interval 86400
 KillMode=control-group
 
 [Install]

zmemtopo/zmemtopo.8

@@ -56,6 +56,11 @@ Sort and display the data according to given FIELD value. Valid values for
 FIELD are "nr" for partition number, "lpar" for partition name, and "sum" for
 total partition increments.
 
+.TP
+.BR "\-p <SUBSTRING>" " or " "\-\-partition-filter=<SUBSTRING>"
+Display only the partitions with names that contain SUBSTRING.
+Matching is case-insensitive.
+
 .TP
 .BR "\-i" " or " "\-\-ascii"
 Use only ASCII characters to render views.

zmemtopo/zmemtopo.c

@@ -46,6 +46,7 @@ static struct zmemtopo_globals {
 	unsigned int sort_field;
 	unsigned int ascii;
 	unsigned int fmt_specified;
+	char *partition_filter;
 	enum util_fmt_t format;
 	enum util_fmt_flags_t fmt_flags;
 } g;
@@ -62,15 +63,11 @@ static void parse_nesting_level(char *arg)
 
 static void parse_sort_field(char *arg)
 {
-	char *s;
-
-	s = util_strdup(arg);
-	util_strstrip(s);
-	if (strcasecmp(s, "nr") == 0)
+	if (strcasecmp(arg, "nr") == 0)
 		g.sort_field = SORT_NR;
-	else if (strcasecmp(s, "lpar") == 0)
+	else if (strcasecmp(arg, "lpar") == 0)
 		g.sort_field = SORT_NAME;
-	else if (strcasecmp(s, "size") == 0)
+	else if (strcasecmp(arg, "size") == 0)
 		g.sort_field = SORT_SIZE;
 	else
 		errx(EXIT_FAILURE, "%s is not a valid sort field option", arg);
@@ -120,6 +117,9 @@ static void parse_args(int argc, char *argv[])
 		case 's':
 			parse_sort_field(optarg);
 			break;
+		case 'p':
+			g.partition_filter = optarg;
+			break;
 		case 'i':
 			g.ascii = 1;
 			break;
@@ -313,7 +313,6 @@ static void topology_entries_add_entry(struct topology_entry *entry,
 static void partition_set_name(struct partition *part, char *pname)
 {
 	ebcdic_to_ascii(pname, part->part_name, LPAR_NAME_LEN);
-	util_strstrip(part->part_name);
 }
 
 static void partition_add_entry(struct partition *part,
@@ -488,6 +487,22 @@ static void partition_list_sort(struct partitions *parts)
 	}
 }
 
+static int partition_filter_matches(struct partition *part)
+{
+	int result;
+
+	if (!part)
+		return 0;
+	if (!g.partition_filter)
+		return 1;
+	if (!strlen(g.partition_filter))
+		return 1;
+	result = 0;
+	if (strcasestr(part->part_name, g.partition_filter))
+		result = 1;
+	return result;
+}
+
 static unsigned int find_entry_cell_size(struct partitions *parts)
 {
 	unsigned int max_digit, max_increment;
@@ -545,8 +560,8 @@ static void table_print_row(char **buf, struct partition *cur,
 	unsigned int i, s_padding;
 
 	s_padding = vdata->entry_len >= SUM_PAD ? vdata->entry_len : SUM_PAD;
-	concat_w_padding(buf, LPAR_NO_LEN, 0, "%2d", cur->part_nr);
-	concat_w_padding(buf, LPAR_NAME_LEN, 0, "%s", cur->part_name);
+	concat_w_padding(buf, LPAR_NO_LEN, 1, "%2d", cur->part_nr);
+	concat_w_padding(buf, LPAR_NAME_LEN, 1, "%s", cur->part_name);
 	concat_w_padding(buf, s_padding, 0, "%lu", cur->increment_total);
 	entries = &cur->entries[g.nesting_level - 1];
 	for (i = 0; i < entries->count; i++) {
@@ -584,8 +599,8 @@ static void table_print_header(char **buf, struct view_data *vdata)
 		}
 		util_concatf(buf, "\n");
 	}
-	util_concatf(buf, "%*s", LPAR_NO_LEN, "NR");
-	util_concatf(buf, "%*s", LPAR_NAME_LEN, "LPAR");
+	util_concatf(buf, "%-*s", LPAR_NO_LEN, "NR");
+	util_concatf(buf, "%-*s", LPAR_NAME_LEN, "LPAR");
 	util_concatf(buf, "%*s\n", s_padding, "SUM");
 }
 
@@ -602,8 +617,11 @@ static void table_print(struct partitions *parts)
 	vdata->entry_len = find_entry_cell_size(parts);
 	partition_list_calculate_level_lengths(parts, vdata);
 	table_print_header(table, vdata);
-	util_list_iterate(parts->list, cur)
+	util_list_iterate(parts->list, cur) {
+		if (!partition_filter_matches(cur))
+			continue;
 		table_print_row(table, cur, vdata);
+	}
 	printf("%s\n", *table);
 	printf("Increment size: %lu%s\n", unit.size / unit.scale, unit.suffix);
 	free(vdata);
@@ -721,6 +739,8 @@ static void tree_create(char **tree, struct partitions *parts,
 	unit = vdata->unit;
 	tree_create_header(tree, vdata);
 	util_list_iterate(parts->list, cur) {
+		if (!partition_filter_matches(cur))
+			continue;
 		util_concatf(tree, "%-*s", vdata->cell_len, cur->part_name);
 		part_size = cur->increment_total * unit.size / unit.scale;
 		concat_w_padding(tree, vdata->entry_len, 0, "%u%s", part_size,
@@ -742,7 +762,9 @@ static unsigned int is_increment_at(struct partitions *parts,
 	else
 		next = util_list_next(parts->list, cur);
 	for (; next; next = util_list_next(parts->list, next)) {
-		if (next->entries[level - 1].increments[idx])
+		if (!next->entries[level - 1].increments[idx])
+			continue;
+		if (partition_filter_matches(next))
 			return 1;
 	}
 	return 0;
@@ -777,6 +799,8 @@ static void rtree_print_parts(char **buf, struct partitions *parts,
 	unit = vdata->unit;
 	flag_idx = (g.max_level - level) + 1;
 	util_list_iterate(parts->list, cur) {
+		if (!partition_filter_matches(cur))
+			continue;
 		entries = &cur->entries[level - 1];
 		if (!entries->increments[idx])
 			continue;
@@ -794,6 +818,21 @@ static void rtree_print_parts(char **buf, struct partitions *parts,
 	}
 }
 
+static unsigned int rtree_is_last_entry(struct partitions *parts, unsigned int idx,
+					unsigned int level, unsigned int end)
+{
+	unsigned int tidx;
+
+	if (g.partition_filter && !g.tree_full) {
+		for (tidx = idx + 1; tidx < end; tidx++) {
+			if (is_increment_at(parts, NULL, level, tidx))
+				return 0;
+		}
+		return 1;
+	}
+	return (idx + 1) == end;
+}
+
 static void rtree_level_to_part(char **buf, struct partitions *parts,
 				unsigned int step, unsigned int level,
 				struct view_data *vdata)
@@ -812,7 +851,8 @@ static void rtree_level_to_part(char **buf, struct partitions *parts,
 		if (!is_increment_at(parts, NULL, level, idx) && !g.tree_full)
 			continue;
 		indent = 0;
-		vdata->end_flag[flag_idx] = (idx + 1) == end;
+		vdata->end_flag[flag_idx] = rtree_is_last_entry(parts, idx,
+								level, end);
 		if (level != g.max_level)
 			indent = tree_add_indent(buf, level, vdata->end_flag);
 		concat_w_padding(buf, vdata->cell_len - indent, 1, "LEVEL%u_%u",

zmemtopo/zmemtopo.h

@@ -68,9 +68,9 @@ struct diag310_t_hdr {
 } __packed;
 
 struct diag310_p_hdr {
-	char			pname[8];	/* partition name */
-	uint8_t			pn;		/* partition number */
-	uint8_t			tie;		/* count of entries following this header */
+	char			pname[LPAR_NAME_LEN];	/* partition name */
+	uint8_t			pn;			/* partition number */
+	uint8_t			tie;			/* count of entries following this header */
 	uint16_t		reserved1;
 	uint32_t		reserved2;
 } __packed;

zmemtopo/zmemtopo_cli.h

@@ -36,6 +36,10 @@ static struct util_opt opt_vec[] = {
 		.option = { "sort", required_argument, NULL, 's' },
 		.argument = "FIELD",
 		.desc = "Sort view by FIELD (nr, lpar, size)"
+	}, {
+		.option = { "partition-filter", required_argument, NULL, 'p' },
+		.argument = "SUBSTRING",
+		.desc = "Filter partitions by name substring (case-insensitive)"
 	}, {
 		.option = { "ascii", no_argument, NULL, 'i' },
 		.desc = "Use only ASCII characters",