From d82beef937bcefde0a06102f466d76f01353fa87 Mon Sep 17 00:00:00 2001
From: Timo Keller <tkeller@linux.ibm.com>
Date: Thu, 18 Jun 2026 14:10:59 +0200
Subject: [PATCH] pv: Implement Display for SymKey based on key_type()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Add a Display implementation for SymKey that formats values as
`SymKey(<type>)`, delegating to key_type(). This provides a clearer
and stable human-readable representation for logs and CLI output.

Reviewed-by: Marc Hartmayer <marc@linux.ibm.com>
Reviewed-by: Steffen Eiden <seiden@linux.ibm.com>
Signed-off-by: Timo Keller <tkeller@linux.ibm.com
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
---
 rust/pv/src/crypto.rs | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/rust/pv/src/crypto.rs b/rust/pv/src/crypto.rs
index 3ad66a88..5a69a261 100644
--- a/rust/pv/src/crypto.rs
+++ b/rust/pv/src/crypto.rs
@@ -162,6 +162,12 @@ impl SymKey {
     }
 }
 
+impl Display for SymKey {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        write!(f, "SymKey({:?})", self.key_type())
+    }
+}
+
 /// Performs an hkdf according to RFC 5869.
 /// See [`OpenSSL HKDF`]()
 ///