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RSA加密算法的C预言实现，对一张灰度图进行加密，然后再解密(RSA encryption algorithm in C prophecy fulfilled, encrypt and then decrypt a grayscale)

实现对单文件的DES加密解密，不限制大小，DES加密部分自写，非调用，用于学习DES原理。(The realization of the single document DES encryption and decryption, no limit to the size, DES encryption part self written, non call, for learning DES principle.)

这只是标准DES算法的例子,必须在WINDOWS环境下编译.(This is just the standard DES algorithm, which must be compiled in the WINDOWS environment.)

自己动手写加壳程序，按照文档一步一步来，做你自己的加壳程序！(Packers to write himself, according to the document step by step, do your own packers!)

RSA算法的解密和加密，用扩展的欧几里得算法求乘法逆元(rsa)

3Des encryption of text from a file, 3DES-EDC-CBC , using 3 keys

信息安全中的RSA算法，界面简单明了，功能齐全(information security of the RSA algorithm, simple interface, the full range of functions)

MD5VB2010实现MD5加密，计算机VB程序(MD5VB2010 achieve MD5 encryption, computer VB program)

3des算法code,已经通过visual c++编译．比一重des算法更加可靠！(3DES algorithm code, has passed visual c++ Compiler. Than one algorithm more reliable re-des!)

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)