OpenSSL 是一个安全套接字层密码库，囊括主要的密码算法、常用的密钥和证书封装管理功能及SSL协议，并提供丰富的应用程序供测试或其它目的使用。(OpenSSL is a secure socket layer (SSL) password library, include the main cipher algorithm commonly used keys and certificates, packaging management function and the SSL protocol, and provides rich application used for testing or other purposes.)