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-rw-r--r--include/crypto/internal/hash.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/crypto/internal/hash.h b/include/crypto/internal/hash.h
index bfc9db7b100d..f68dab38f160 100644
--- a/include/crypto/internal/hash.h
+++ b/include/crypto/internal/hash.h
@@ -85,6 +85,12 @@ static inline bool crypto_shash_alg_has_setkey(struct shash_alg *alg)
return alg->setkey != shash_no_setkey;
}
+static inline bool crypto_shash_alg_needs_key(struct shash_alg *alg)
+{
+ return crypto_shash_alg_has_setkey(alg) &&
+ !(alg->base.cra_flags & CRYPTO_ALG_OPTIONAL_KEY);
+}
+
bool crypto_hash_alg_has_setkey(struct hash_alg_common *halg);
int crypto_init_ahash_spawn(struct crypto_ahash_spawn *spawn,