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Diffstat (limited to 'src/plugins/crypto_openssl/main.c')
-rw-r--r--src/plugins/crypto_openssl/main.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/src/plugins/crypto_openssl/main.c b/src/plugins/crypto_openssl/main.c
index 9a78cb46dd9..13981e929c7 100644
--- a/src/plugins/crypto_openssl/main.c
+++ b/src/plugins/crypto_openssl/main.c
@@ -120,7 +120,8 @@ openssl_ops_enc_gcm (vlib_main_t * vm, vnet_crypto_op_t * ops[], u32 n_ops,
EVP_EncryptInit_ex (ctx, cipher, 0, 0, 0);
EVP_CIPHER_CTX_ctrl (ctx, EVP_CTRL_GCM_SET_IVLEN, op->iv_len, NULL);
EVP_EncryptInit_ex (ctx, 0, 0, op->key, op->iv);
- EVP_EncryptUpdate (ctx, NULL, &len, op->aad, op->aad_len);
+ if (op->aad_len)
+ EVP_EncryptUpdate (ctx, NULL, &len, op->aad, op->aad_len);
EVP_EncryptUpdate (ctx, op->dst, &len, op->src, op->len);
EVP_EncryptFinal_ex (ctx, op->dst + len, &len);
EVP_CIPHER_CTX_ctrl (ctx, EVP_CTRL_GCM_GET_TAG, op->tag_len, op->tag);
@@ -145,7 +146,8 @@ openssl_ops_dec_gcm (vlib_main_t * vm, vnet_crypto_op_t * ops[], u32 n_ops,
EVP_DecryptInit_ex (ctx, cipher, 0, 0, 0);
EVP_CIPHER_CTX_ctrl (ctx, EVP_CTRL_GCM_SET_IVLEN, op->iv_len, 0);
EVP_DecryptInit_ex (ctx, 0, 0, op->key, op->iv);
- EVP_DecryptUpdate (ctx, 0, &len, op->aad, op->aad_len);
+ if (op->aad_len)
+ EVP_DecryptUpdate (ctx, 0, &len, op->aad, op->aad_len);
EVP_DecryptUpdate (ctx, op->dst, &len, op->src, op->len);
EVP_CIPHER_CTX_ctrl (ctx, EVP_CTRL_GCM_SET_TAG, op->tag_len, op->tag);