diff --git a/frameworks/crypto_operation/signature.c b/frameworks/crypto_operation/signature.c
index 711a3a13291fa4d1a3174a89999e7f07c2e83da2..b6487f4a911cba1bec4a1dd188c0f70d4f148927 100644
--- a/frameworks/crypto_operation/signature.c
+++ b/frameworks/crypto_operation/signature.c
@@ -45,16 +45,6 @@ typedef struct {
     char algoName[HCF_MAX_ALGO_NAME_LEN];
 } HcfVerifyImpl;
 
-typedef struct {
-    const char *algoType;
-
-    uint32_t digestAlg;
-
-    int32_t keyLen;
-
-    int32_t padding;
-} HcfEcdsaParams;
-
 typedef struct {
     HCF_ALG_VALUE algo;
 
diff --git a/frameworks/js/napi/inc/napi_utils.h b/frameworks/js/napi/inc/napi_utils.h
index 2790b7b07b5441cb1f7d65e68c648f07d495db41..493b4c77b92d707af5cc9faaee6803b3041e2021 100644
--- a/frameworks/js/napi/inc/napi_utils.h
+++ b/frameworks/js/napi/inc/napi_utils.h
@@ -52,7 +52,6 @@ bool GetStringFromJSParams(napi_env env, napi_value arg, std::string &returnStr)
 bool GetInt32FromJSParams(napi_env env, napi_value arg, int32_t &returnInt);
 bool GetUint32FromJSParams(napi_env env, napi_value arg, uint32_t &returnInt);
 bool GetCallbackFromJSParams(napi_env env, napi_value arg, napi_ref *returnCb);
-bool ParseArrayBuffer(napi_env env, napi_value args, uint8_t **data, size_t &size);
 bool GetEncodingBlobFromValue(napi_env env, napi_value object, HcfEncodingBlob **encodingBlob);
 bool GetCertChainFromValue(napi_env env, napi_value object, HcfCertChainData **certChainData);
 bool CheckArgsCount(napi_env env, size_t argc, size_t expectedCount, bool isSync);
diff --git a/frameworks/js/napi/src/napi_asy_key_generator.cpp b/frameworks/js/napi/src/napi_asy_key_generator.cpp
index 62b5e57ca8912a1a3bcafb47351ada93988f9243..1604668a164dfa260d9088ba1ac6fcfe38a08222 100644
--- a/frameworks/js/napi/src/napi_asy_key_generator.cpp
+++ b/frameworks/js/napi/src/napi_asy_key_generator.cpp
@@ -323,7 +323,7 @@ static void ConvertKeyAsyncWorkReturn(napi_env env, napi_status status, void *da
     napi_value instance = nullptr;
     if (ctx->result == HCF_SUCCESS) {
         NapiKeyPair *napiKeyPair = new NapiKeyPair(ctx->returnKeyPair);
-        napi_value instance = napiKeyPair->ConvertToJsKeyPair(env);
+        instance = napiKeyPair->ConvertToJsKeyPair(env);
 
         napi_wrap(
             env, instance, napiKeyPair,
diff --git a/frameworks/js/napi/src/napi_utils.cpp b/frameworks/js/napi/src/napi_utils.cpp
index aae9d2ce5b2cbd8910461350f369d8f351517c8a..09eb0ad6a52df4de1f6c7fb92532201854372bd5 100644
--- a/frameworks/js/napi/src/napi_utils.cpp
+++ b/frameworks/js/napi/src/napi_utils.cpp
@@ -649,27 +649,6 @@ bool GetCallbackFromJSParams(napi_env env, napi_value arg, napi_ref *returnCb)
     return true;
 }
 
-bool ParseArrayBuffer(napi_env env, napi_value args, uint8_t **data, size_t &size)
-{
-    napi_status status;
-    napi_valuetype valuetype;
-    napi_typeof(env, args, &valuetype);
-
-    if (valuetype != napi_object) {
-        LOGE("Wrong argument type(%d). object expected.", valuetype);
-        return false;
-    }
-
-    status = napi_get_arraybuffer_info(env, args, (void**)data, &size);
-    if (status != napi_ok) {
-        LOGE("can not get arraybuffer, error is %d", status);
-        (*data)[0] = -1;
-        return false;
-    }
-    LOGI("arraybuffer size is %zu", size);
-    return true;
-}
-
 static uint32_t GetJsErrValueByErrCode(int32_t errCode)
 {
     switch (errCode) {