RSA

sha256计算代码，非常好用的代码，大家可以用这个代码直接计算哈希值，sha256实现 依次执行 SHA256Init、 SHA256Update SHA256Final 三个函数即可得到sha256结果(sha256 sourse code，Is very usefull)

VC++下MD5运行和使用示例,可以正常使用MD5算法(VC MD5)

AES加密以及解密实现，这是一个AES文件加密软件，用VC++ MFC编写，里面有详细的源代码以及加密和解密的具体实现方法。(AES encryption and decryption to achieve, this is a AES file encryption software, written using VC++ MFC, which has detailed source code and encryption and decryption of the specific implementation method.)

DES加密算法，初始置换、密钥置换、密钥循环、密钥压缩置换、数据扩展置换、、S盒替换、P盒置换、末置换 (DES encryption algorithm, the initial replacement, key replacement, key loops, key compression replacement, data expansion permutation,, S cartridge replacement, P cartridge replacement, replacement end)

用VC6.0实现的，运用NTL大整数库实现RSA的加密和解密算法，具有较高的效率！(VC6.0 achieved by applying NTL large integer achieve RSA encryption and decryption algorithms, with high efficiency!)

基于VB的M5数学密码算法源码,有需要的就下载吧。(VB-based M5 mathematical algorithm source code, there is a need to download it.)

文件系统过滤驱动程序的框架，对于做文件透明加密的朋友很有帮助()

基于国密算法SM3实现HMAC，输入密钥和消息，可产生HASH验证码，C环境下调试成功(Based on the countries close algorithm realization SM3 HMAC, input key and news, can produce HASH verification code, C environment debugging success)

这是一个小程序,凯撒解密,自己写的,以后还会扩展的(This is a simple program for a example of ceasar cipher. It is produced by myself and I want to extend it to a substitution cipher program in some days.)

用Visual c++实现数字图像迭代混沌加密(Using Visual c++ Realize digital image iterative chaotic encryption)