1# Security 2 3- Access Control 4 - [Access Control (Permission) Overview](accesstoken-overview.md) 5 - [Applying for Permissions](accesstoken-guidelines.md) 6 - [Verifying API Access Permissions](permission-verify-guidelines.md) 7 - [Application Permission List](permission-list.md) 8- User Authentication 9 - [User Authentication Overview](userauth-overview.md) 10 - [User Authentication Development](userauth-guidelines.md) 11- HUKS 12 - [HUKS Overview](huks-overview.md) 13 - [HUKS Development](huks-guidelines.md) 14- Crypto Framework 15 - [Crypto Framework Overview](cryptoFramework-overview.md) 16 - [Crypto Framework Development](cryptoFramework-guidelines.md) 17- Certificate 18 - [Certificate Overview](cert-overview.md) 19 - [Certificate Development](cert-guidelines.md) 20- hapsigner 21 - [hapsigner Overview](hapsigntool-overview.md) 22 - [hapsigner Guide](hapsigntool-guidelines.md) 23 - [HarmonyAppProvision Configuration File](app-provision-structure.md)