GlobalPlatform Security Access Module】Applet(以下簡稱GPSAM)提供在GlobalPlatform Card上的Card Manager Key驗證、更新與APDU Command的MAC計算之功能。利用JavaCard本身的DES運算與基碼儲存功能，所有基碼多樣化或驗證運算過程皆在卡片內部完成，確保基碼只進不出之安控要求。-GlobalPlatform Security Access Module】 Applet (hereinafter referred to GPSAM) provided on the GlobalPlatform Card in the Card Manager Key authentication, updating and APDU Command function calculation of the MAC. DES use JavaCard own operations and code-based storage capabilities, all based computing code or to verify the process of diversification are completed in the internal card to ensure that the code base into not only the requirements of security control.