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zkey: Remove the use of AF_ALG for calculating key verification patterns

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Instead of using AF_ALG to calculate key verification patterns, transform
the key blob into a protected key and calculate the key verification
patterns with CAPCF calls.

The 'zkey-cryptsetup convert' command also calculates key verification
patterns from clear keys. Support this, too.

Reviewed-by: Finn Callies <fcallies@linux.ibm.com>
Signed-off-by: Ingo Franzki <ifranzki@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
This commit is contained in:
Ingo Franzki
2026-06-08 13:15:30 +02:00
committed by Jan Höppner
parent 44d6020774
commit 7fffdcfe8c
8 changed files with 1098 additions and 221 deletions
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3
include/lib/zt_common.h
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@@ -102,6 +102,9 @@
_x > _y ? _x : _y; \
})
#ifdef __SIZEOF_INT128__
typedef unsigned __int128 u128 __aligned(16);
#endif
typedef unsigned long long u64;
typedef signed long long s64;
typedef unsigned int u32;