md5encode

说明：  采用RCS做文件加密的源程序代码，VC环境。包含两个文件包，里面的Readme有详细介绍。(Using RCS to do file encryption source code, VC environment. Package consists of two documents, which detailed the Readme.)

ElGamal加密算法，经过测试可以编译运行(ElGamal Encryption )

sha256的签名算法，纯C实现，已验证正确，在控制台上直接运行即可，(sha256 signature algorithm, pure C implementation ，has been verified properly and can be run directly on the console.)

国密算法sm实现 sm2数字签名 密钥交换，sm3，sm4，已实现、求sm2第四部分公钥加密c实现源码。。。江湖救急。。。(sm2，sm3，sm4。。。)

利用C语言实现的cmac算法，该cmac基于AES。程序清晰有注释便于查看(The use of C language cmac algorithm, the cmac based AES. There are clear and easy to view program notes)

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)

看到RSA加密的C++类下载的人不少，我也下载了，并且稍微改动了一下，使它看上去更加易懂。在新年随手写了一套RSA文件加密，用win32dll封装使用了这个类，用C#写了文件加密和操作界面，可以实现密钥的保存和对任何文件的RSA加密操作。送给大家祝大家新年快乐。(see RSA encryption C downloaded to many people, I have downloaded and slightly altered a bit it looks more comprehensible. New Year threw in a written document RSA encryption, win32dll Compliant with the use of this category, C# to write document encryption and interface, can achieve key to the preservation of any documents and the RSA encryption operation. Give you wish you a happy New Year.)

文件的加密传输，用到了各种加密算法 MD5 RSA (File encryption MD5 RSA )

加密文件夹,十分好用 使用visual basic环境编程(lock file)

检测CRC编码 看CRC编码在传输后是否有错误 有变动 (Detection CRC codes to see whether the CRC coding errors in the transmission there is a change)