diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
index a1b0fbe3ea351f6e7e953078ffd90d29dd29e196..b976d9ed10e45a3a2e410a6b873f9128a18f6021 100644
--- a/net/xfrm/xfrm_user.c
+++ b/net/xfrm/xfrm_user.c
@@ -50,19 +50,8 @@ static int verify_one_alg(struct nlattr **attrs, enum xfrm_attr_type_t type)
 
 	switch (type) {
 	case XFRMA_ALG_AUTH:
-		if (!algp->alg_key_len &&
-		    strcmp(algp->alg_name, "digest_null") != 0)
-			return -EINVAL;
-		break;
-
 	case XFRMA_ALG_CRYPT:
-		if (!algp->alg_key_len &&
-		    strcmp(algp->alg_name, "cipher_null") != 0)
-			return -EINVAL;
-		break;
-
 	case XFRMA_ALG_COMP:
-		/* Zero length keys are legal.  */
 		break;
 
 	default: