int len;
EVP_DecryptInit_ex (ctx, cipher, 0, 0, 0);
- EVP_CIPHER_CTX_ctrl (ctx, EVP_CTRL_GCM_SET_IVLEN, op->iv_len, 0);
+ EVP_CIPHER_CTX_ctrl (ctx, EVP_CTRL_GCM_SET_IVLEN, 12, 0);
EVP_DecryptInit_ex (ctx, 0, 0, key->data, op->iv);
if (op->aad_len)
EVP_DecryptUpdate (ctx, 0, &len, op->aad, op->aad_len);