diff --git a/lib/crypto_backend/crypto_backend.h b/lib/crypto_backend/crypto_backend.h
index e316808d..abd99600 100644
--- a/lib/crypto_backend/crypto_backend.h
+++ b/lib/crypto_backend/crypto_backend.h
@@ -117,6 +117,8 @@ int crypt_storage_decrypt(struct crypt_storage *ctx, uint64_t iv_offset,
 int crypt_storage_encrypt(struct crypt_storage *ctx, uint64_t iv_offset,
 			  uint64_t length, char *buffer);
 
+bool crypt_storage_kernel_only(struct crypt_storage *ctx);
+
 /* Memzero helper (memset on stack can be optimized out) */
 static inline void crypt_backend_memzero(void *s, size_t n)
 {
diff --git a/lib/crypto_backend/crypto_storage.c b/lib/crypto_backend/crypto_storage.c
index 363d55d1..25a9f56a 100644
--- a/lib/crypto_backend/crypto_storage.c
+++ b/lib/crypto_backend/crypto_storage.c
@@ -313,3 +313,8 @@ void crypt_storage_destroy(struct crypt_storage *ctx)
 	memset(ctx, 0, sizeof(*ctx));
 	free(ctx);
 }
+
+bool crypt_storage_kernel_only(struct crypt_storage *ctx)
+{
+	return crypt_cipher_kernel_only(ctx->cipher);
+}