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Introduction to Cryptography in plain simple english. The document talks about the early day cryptography and gives some simple examples to the readers.

adfgx密表密码-adfgx secret password

DES加密类，可以自定义key，可以更改IP置换表-DES encryption type, you can customize the key, you can change the IP permutation table

椭圆曲线加密算法源代码，用VC＋＋编写，很好的东西-Elliptic curve encryption algorithm source code, using VC to prepare, good things

简单的 密码问题 初学者-simple passwords for beginners

古典密码算法中的单表代换密码算法、移位密码算法、Vigenere密码算法。算法比较简单，用命令的方式。可以随机生成明文和密钥。-Classical cryptographic algorithm in a single table substitution cipher, transposition cipher, Vigenere cipher. Algorithm is relatively simple, way to use the command. Can be randomly generated and the key explicitly.

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包括密钥盘制作软件、LIB、DLL 加密模块 各种语言调用加密模块的例子程序、网络注册软件等-including key disk production software, LIB, DLL encryption modules in various languages called encryption module example, Web registration software

Rijndael (AES) original small encryption algorithm implementation

md5算法，实现给一个512bir数据块加密，程序有详细的注释，-md5 algorithm, to realize a data block encryption 512bir, procedures have detailed notes,