diff --git a/crypto/evp/e_aes.c b/crypto/evp/e_aes.c index 1ede7bd39..a4327fcb0 100644 --- a/crypto/evp/e_aes.c +++ b/crypto/evp/e_aes.c @@ -1146,7 +1146,7 @@ static int aes_ccm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr) case EVP_CTRL_CCM_SET_TAG: if ((arg & 1) || arg < 4 || arg > 16) return 0; - if ((c->encrypt && ptr) || (!c->encrypt && !ptr)) + if (c->encrypt && ptr) return 0; if (ptr) { cctx->tag_set = 1;