使用openssl完成pkcs11功能的工程，使用Engine方式实现，可以在此基础上调用自己的硬件设备完成密码运算。使用C语言开发，是学习openssl，pkcs11，Engine机制不可多得的样例程序。-Function using the openssl pkcs11 complete the project, be achieved using the Engine can be invoked on the basis of their hardware equipment to co

SHA1算法为基础的加密程序，主要用于信息安全课程设计的普通数据加密的课题，运行环境在C++6.0 -SHA1 algorithm based encryption program, mainly for information security, data encryption ordinary course design topics, the operating environment in C++6.0