利用c++实现的一个数字认证的模拟程序。-c achieved using a digital authentication of the simulation program.

这个是用C++模拟实现DES算法的加密的程序-This is written in c++ simulation realization DES algorithm encryption program

根据数字签名原理模拟的数字签名程序，应用到服务器--客户端程序，RSA技术等，相当先进-According to the principle analog digital signature digital signature, application to a server- client program, RSA technology, quite advanced