Don't require tag before ciphertext in AESGCM mode

(cherry picked from commit 964eaad78c)
This commit is contained in:
Dr. Stephen Henson 2012-10-16 22:46:08 +00:00
parent b0ee17ad47
commit 7e98d95f56

View file

@ -956,8 +956,6 @@ static int aes_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
if (!gctx->iv_set)
return -1;
if (!ctx->encrypt && gctx->taglen < 0)
return -1;
if (in)
{
if (out == NULL)
@ -999,6 +997,8 @@ static int aes_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
{
if (!ctx->encrypt)
{
if (gctx->taglen < 0)
return -1;
if (CRYPTO_gcm128_finish(&gctx->gcm,
ctx->buf, gctx->taglen) != 0)
return -1;