diff --git a/zh-cn/application-dev/security/huks-guidelines.md b/zh-cn/application-dev/security/huks-guidelines.md
index c36adeabf333b58d9a9038ce1106f1db5830f039..def1398ca152a1b273f00943778863fa55565e7e 100644
--- a/zh-cn/application-dev/security/huks-guidelines.md
+++ b/zh-cn/application-dev/security/huks-guidelines.md
@@ -171,6 +171,7 @@ RSA512, RSA768, RSA1024, RSA2048, RSA3072, RSA4096, ECC224, ECC256, ECC384, ECC5
 /* 以生成RSA512密钥为例 */
 var srcKeyAlias = 'hukRsaKeyAlias';
 var srcKeyAliasSecond = 'huksRsaKeyAliasSecond';
+var exportKey;
 
 async function testImportExport() {
     /* 集成生成密钥参数集 */
@@ -1425,6 +1426,7 @@ function hkdfStringToUint8Array(str) {
 
 var deriveHkdfInData = "deriveHkdfTestIndata";
 var srcKeyAlias = "deriveHkdfKeyAlias";
+var handle;
 var HuksKeyDeriveKeySize = 32;
 
 async function testDerive() {
@@ -1455,7 +1457,7 @@ async function testDerive() {
     await huks.generateKey(srcKeyAlias, huksOptions).then((data) => {
         console.info('test generateKey data = ' + JSON.stringify(data));
     }).catch((err) => {
-        console.info(`test init err: " + ${JSON.stringify(data)}`);
+        console.info(`test init err: " + ${JSON.stringify(err)}`);
     });
 
     /* 调整init时的参数集 */
@@ -1497,7 +1499,7 @@ async function testDerive() {
     }
     finishProperties[6] = {
         tag: huks.HuksTag.HUKS_TAG_KEY_ALIAS,
-        value: stringToUint8Array(srcKeyAlias),
+        value: hkdfStringToUint8Array(srcKeyAlias),
     }
     finishProperties[7] = {
         tag: huks.HuksTag.HUKS_TAG_PADDING,