diff --git a/opencrypto/gmssl/sm4/sm4.go b/opencrypto/gmssl/sm4/sm4.go
index 57eed2dad4bc93225e0688576e11db2cae9fdb94..d76b27dbbf5f8219099b8775de3c8178ad80b729 100644
--- a/opencrypto/gmssl/sm4/sm4.go
+++ b/opencrypto/gmssl/sm4/sm4.go
@@ -1,3 +1,10 @@
+/*
+Copyright (C) BABEC. All rights reserved.
+Copyright (C) THL A29 Limited, a Tencent company. All rights reserved.
+
+SPDX-License-Identifier: Apache-2.0
+*/
+
 package sm4
 
 import (
diff --git a/opencrypto/gmssl/sm4/sm4_test.go b/opencrypto/gmssl/sm4/sm4_test.go
index a74e4c0d201a109a5dea5e61ba3a87a653101672..3b7b1659342651db98c6b6be81828c631ec20382 100644
--- a/opencrypto/gmssl/sm4/sm4_test.go
+++ b/opencrypto/gmssl/sm4/sm4_test.go
@@ -1,3 +1,10 @@
+/*
+Copyright (C) BABEC. All rights reserved.
+Copyright (C) THL A29 Limited, a Tencent company. All rights reserved.
+
+SPDX-License-Identifier: Apache-2.0
+*/
+
 package sm4
 
 import (
diff --git a/opencrypto/tencentsm/sm4/sm4.go b/opencrypto/tencentsm/sm4/sm4.go
index 5a90f24db619f8bd50163d6e623e34f8428901fa..9440af238be3cc68ecd076262473f94e16ca1d2e 100644
--- a/opencrypto/tencentsm/sm4/sm4.go
+++ b/opencrypto/tencentsm/sm4/sm4.go
@@ -1,3 +1,10 @@
+/*
+Copyright (C) BABEC. All rights reserved.
+Copyright (C) THL A29 Limited, a Tencent company. All rights reserved.
+
+SPDX-License-Identifier: Apache-2.0
+*/
+
 package sm4
 
 import (
diff --git a/opencrypto/tencentsm/sm4/sm4_test.go b/opencrypto/tencentsm/sm4/sm4_test.go
index 77550d8220be256a580d3a1b99531f379199cb09..cee4b3c9cbbf04e1f0e821da5d05aaf6adb2d315 100644
--- a/opencrypto/tencentsm/sm4/sm4_test.go
+++ b/opencrypto/tencentsm/sm4/sm4_test.go
@@ -1,3 +1,10 @@
+/*
+Copyright (C) BABEC. All rights reserved.
+Copyright (C) THL A29 Limited, a Tencent company. All rights reserved.
+
+SPDX-License-Identifier: Apache-2.0
+*/
+
 package sm4
 
 import (
diff --git a/opencrypto/utils/const.go b/opencrypto/utils/const.go
index db04ca822cd5f41908faf81ceed995328b34efe8..a4e04b1861c61f4d2528415faec555b8392f80de 100644
--- a/opencrypto/utils/const.go
+++ b/opencrypto/utils/const.go
@@ -1,3 +1,10 @@
+/*
+Copyright (C) BABEC. All rights reserved.
+Copyright (C) THL A29 Limited, a Tencent company. All rights reserved.
+
+SPDX-License-Identifier: Apache-2.0
+*/
+
 package utils
 
 const (