Add missing PSA_ALG_IS_SIGN_HASH macro.
Signed-off-by: Mateusz Starzyk <mateusz.starzyk@mobica.com>
diff --git a/include/psa/crypto_values.h b/include/psa/crypto_values.h
index ca35a89..12358a1 100644
--- a/include/psa/crypto_values.h
+++ b/include/psa/crypto_values.h
@@ -1569,6 +1569,21 @@
#define PSA_ALG_IS_SIGN_MESSAGE(alg) \
(PSA_ALG_IS_HASH_AND_SIGN(alg) || (alg) == PSA_ALG_PURE_EDDSA )
+/** Whether the specified algorithm is a signature algorithm that can be used
+ * with psa_sign_hash() and psa_verify_hash().
+ *
+ * \param alg An algorithm identifier (value of type psa_algorithm_t).
+ *
+ * \return 1 if alg is a signature algorithm that can be used to sign a
+ * hash. 0 if alg is a signature algorithm that can only be used
+ * to sign a message. 0 if alg is not a signature algorithm.
+ * This macro can return either 0 or 1 if alg is not a
+ * supported algorithm identifier.
+ */
+#define PSA_ALG_IS_SIGN_HASH(alg) \
+ (PSA_ALG_IS_HASH_AND_SIGN(alg) || (alg) == PSA_ALG_ED25519PH || \
+ (alg) == PSA_ALG_ED448PH)
+
/** Get the hash used by a hash-and-sign signature algorithm.
*
* A hash-and-sign algorithm is a signature algorithm which is