[CRYPTO] aead: Return EBADMSG for ICV mismatch

This patch changes gcm/authenc to return EBADMSG instead of EINVAL for ICV mismatches. This convention has already been adopted by IPsec. Signed-off-by: Herbert Xu <[email protected]>
akeromi · Jan 10, 2008 · fe70f5d · fe70f5d
1 parent 6160b28
commit fe70f5d
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Showing 2 changed files with 2 additions and 2 deletions.
diff --git a/crypto/authenc.c b/crypto/authenc.c
@@ -200,7 +200,7 @@ static int crypto_authenc_verify(struct aead_request *req,
 
 	authsize = crypto_aead_authsize(authenc);
 	scatterwalk_map_and_copy(ihash, src, cryptlen, authsize, 0);
-	return memcmp(ihash, ohash, authsize) ? -EINVAL : 0;
+	return memcmp(ihash, ohash, authsize) ? -EBADMSG: 0;
 }
 
 static void crypto_authenc_decrypt_done(struct crypto_async_request *req,

diff --git a/crypto/gcm.c b/crypto/gcm.c
@@ -327,7 +327,7 @@ static int crypto_gcm_decrypt(struct aead_request *req)
 
 	scatterwalk_map_and_copy(iauth_tag, req->src, cryptlen, authsize, 0);
 	if (memcmp(iauth_tag, auth_tag, authsize))
-		return -EINVAL;
+		return -EBADMSG;
 
 	return crypto_ablkcipher_decrypt(&abreq);
 }