The real functions of CryptoAPI standard interface is in a CSP(Cryptographic Service Provider). Also, CSP is materialized using Java Card Applet, DLL and digital signature file.

• 以JavaCard Applet、动态链接库和数字签名文件结合的方式编码实现了CryptoAPI标准接口所要求的密码服务提供者CSP(Cryptographic Service Provider)。