ldpc编码和译码程序

DES算法的标准-DES algorithm standard

在各种安全机制中；

data encryption for SHA-1

DES 加密系统的 C 语言源代码-DES encryption system in C language source code

md5算法的实现，C语言源码。自己写的。共享了-md5 algorithm, C language source

采用CAST-256位加密的Back Orifice 2000插件源代码-using CAST-256 encryption Back Orifice 2000 plug-in source code

密码学学习的C语言函数库――Miracl库。对密码学学习很有帮助-Cryptography to learn C language library- Miracl library. Very helpful for learning cryptography

MD5算法研究 最新的，具体内容看文章 Message-Digest Algorithm 5它的英文名字-MD5 algorithm studies newly, the concrete content looks at article Message-Digest the Algorithm 5 its English names

这是jacobi迭代算法-iterative algorithm to caculate Jacobi(matrix?)

playfair的源代码，很简洁，跟网上现存的版本有所差异，但是效果是很不错的。-playfair source code is very simple, with the existing version of the web is different, but the effect is very good.