diff --git a/zh-cn/application-dev/security/cryptoFramework-guidelines.md b/zh-cn/application-dev/security/cryptoFramework-guidelines.md
index 782f67d310921f06a72e179a008a71331ef79902..38991c09e4a87046cc0286111bf5c4f6e9c3bcfe 100644
--- a/zh-cn/application-dev/security/cryptoFramework-guidelines.md
+++ b/zh-cn/application-dev/security/cryptoFramework-guidelines.md
@@ -2571,6 +2571,8 @@ function doRandBySync() {
 
 针对加解密算法开发，有以下相关实例可供参考：
 
+- [通用密钥库系统（cryptoFramework）（ArkTS）（API9）](https://gitee.com/openharmony/applications_app_samples/tree/OpenHarmony-4.0-Beta2/code/BasicFeature/Security/CryptoFramework)
+
 - [加解密（ArkTS）（API9）](https://gitee.com/openharmony/applications_app_samples/tree/OpenHarmony-4.0-Beta2/code/BasicFeature/Security/Cipher)
 
 - [字符串加解密（ArkTS）（API9）](https://gitee.com/openharmony/codelabs/tree/master/Security/StringCipherArkTS)