diff --git a/services/ca_mock/src/buffer.cpp b/services/ca_mock/src/buffer.cpp
index e75dc9436b325ed264c07be8a4cdced4187b08eb..0893a7a6f79b8e814c2185be776de0cde3ba40df 100644
--- a/services/ca_mock/src/buffer.cpp
+++ b/services/ca_mock/src/buffer.cpp
@@ -123,6 +123,7 @@ void DestoryBuffer(Buffer *buffer)
 {
     if (buffer != nullptr) {
         if (buffer->buf != nullptr) {
+            // tianshi：处于避免泄露信息的考虑，应对MaxSize，清零
             if (memset_s(buffer->buf, buffer->contentSize, 0, buffer->contentSize) != EOK) {
                 FACEAUTH_HILOGE(MODULE_SERVICE, "DestoryBuffer memset fail!");
             }
diff --git a/services/ca_mock/src/face_auth_ca.cpp b/services/ca_mock/src/face_auth_ca.cpp
index 55c04125d9801da9ea6e1e4ece6b8ee7f2bbf6cb..9ff7e5142b6414f1615a52b4e68a38f134ad9fd2 100644
--- a/services/ca_mock/src/face_auth_ca.cpp
+++ b/services/ca_mock/src/face_auth_ca.cpp
@@ -324,6 +324,7 @@ FIRetCode FaceAuthCA::GetState(int32_t &resultCode, int32_t param[RESULT_MAX_SIZ
     if (resultNum_ < (int)resultInfos_.size()) {
         resultCode = resultInfos_[resultNum_].resultCode;
         FACEAUTH_HILOGI(MODULE_SERVICE, "memcpy length is %{public}d", sizeof(int32_t) * RESULT_MAX_SIZE);
+        // tianshi: 未使用安全函数
         if (memcpy(param, resultInfos_[resultNum_].param,
                 sizeof(int32_t) * RESULT_MAX_SIZE) != nullptr) {
             return FIRetCode::FI_RC_ERROR;
diff --git a/services/common/include/face_auth_defines.h b/services/common/include/face_auth_defines.h
index df7fbcf6fe3383c9df3534d814c19a98b7e2e6b2..a2d36dee21dd2ae2a815a5c003f41537920c4018 100644
--- a/services/common/include/face_auth_defines.h
+++ b/services/common/include/face_auth_defines.h
@@ -104,6 +104,7 @@ static const int32_t FACE_COMMAND_INIT_ALGORITHM = 5;
 static const int32_t FACE_COMMAND_RELEASE_ALGORITHM = 6;
 // command from Co-Auth(OnGetProperty)
 static const int32_t FACE_COMMAND_GET = 1;
+// tianshi: 拼写错误
 // alogrithm state from FaceAuth CA
 static const int32_t FACE_ALOGRITHM_OPERATION_CONTINUE = 0;
 static const int32_t FACE_ALOGRITHM_OPERATION_BREAK = 1;
diff --git a/services/faceauth/src/face_auth_common_event_subscriber.cpp b/services/faceauth/src/face_auth_common_event_subscriber.cpp
index 116101e4098b931fce40452e8aa0f9827ef64743..b2beccc7db2cb3ddbd0623d58e46446fd14074c7 100644
--- a/services/faceauth/src/face_auth_common_event_subscriber.cpp
+++ b/services/faceauth/src/face_auth_common_event_subscriber.cpp
@@ -34,6 +34,7 @@ void FaceAuthCommonEventSubscriber::OnReceiveEvent(const CommonEventData &data)
     FACEAUTH_HILOGI(MODULE_SERVICE, "OnReceiveEvent enter");
     OHOS::EventFwk::Want want = data.GetWant();
     std::string action = want.GetAction();
+    // tianshi：拼写错误
     FACEAUTH_HILOGD(MODULE_SERVICE, "Recieved common event:%{public}s", action.c_str());
     if (action == REGISTER_NOTIFICATION) {
         callback_->Start();
diff --git a/services/faceauth/src/face_auth_manager.cpp b/services/faceauth/src/face_auth_manager.cpp
index 371f5038e7d911e080fce81e23a5fd37be577eef..947ee94aa511eb1f2bc8a6e98cebedce196d03c9 100644
--- a/services/faceauth/src/face_auth_manager.cpp
+++ b/services/faceauth/src/face_auth_manager.cpp
@@ -459,6 +459,7 @@ FIRetCode FaceAuthManager::OperForAlgorithm(uint64_t scheduleID)
         std::unique_ptr<u_int8_t[]> token_ptr = std::make_unique<u_int8_t[]>(TOKEN_NUM);
         GetAuthToken(token_ptr, len);
         uint8_t token[TOKEN_NUM];
+        // tianshi： 未使用安全函数
         if (memcpy(token, token_ptr.get(), len) != nullptr) {
             FACEAUTH_HILOGE(MODULE_SERVICE, "GetAuthToken memcpy fail");
             return FI_RC_ERROR;
@@ -752,6 +753,7 @@ FIRetCode FaceAuthManager::DoWaitInitAlgorithm(std::future<int32_t> futureobj)
 int32_t FaceAuthManager::GetAuthToken(std::unique_ptr<uint8_t[]> &authToken, uint32_t &len)
 {
     uint8_t at[] = {'A', 'u', 't', 'h', 'T', 'o', 'k', 'e', 'n', '\0'};
+    // tianshi: 未使用安全函数
     if (memcpy(authToken.get(), at, sizeof(at)) != nullptr) {
         FACEAUTH_HILOGE(MODULE_SERVICE, "GetAuthToken memcpy fail");
         return FA_RET_ERROR;