Merge GH #2051 Have cli sign util update stateful keys

2 files changed, 4 insertions, 0 deletions

diff --git a/src/lib/pubkey/pk_keys.h b/src/lib/pubkey/pk_keys.h
index e7e86d8fa..6f2b7ab60 100644
--- a/src/lib/pubkey/pk_keys.h
+++ b/src/lib/pubkey/pk_keys.h
@@ -186,6 +186,8 @@ class BOTAN_PUBLIC_API(2,0) Private_Key : public virtual Public_Key
       Private_Key& operator=(const Private_Key& other) = default;
       virtual ~Private_Key() = default;
 
+      virtual bool stateful_operation() const { return false; }
+
       /**
       * @return BER encoded private key bits
       */
diff --git a/src/lib/pubkey/xmss/xmss_privatekey.h b/src/lib/pubkey/xmss/xmss_privatekey.h
index d362f99b5..2bfcbc82e 100644
--- a/src/lib/pubkey/xmss/xmss_privatekey.h
+++ b/src/lib/pubkey/xmss/xmss_privatekey.h
@@ -91,6 +91,8 @@ class BOTAN_PUBLIC_API(2,0) XMSS_PrivateKey final : public virtual XMSS_PublicKe
          set_unused_leaf_index(idx_leaf);
          }
 
+      bool stateful_operation() const override { return true; }
+
       /**
        * Retrieves the last unused leaf index of the private key. Reusing a leaf
        * by utilizing leaf indices lower than the last unused leaf index will