IBM的MARS加密算法实现，采用VC++语言开发，包含动态链接库，可直接使用。...

简单的文件加密代码 一个不错的文件加密系统，对你工作的安全大大加强。-simple file encryption code a good file encryption system, you have the right security greatly enhanced.

美国加密中心公布的DES程序-American Center for the encryption process DES

差分密码分析，此实验是对S-P密码体制的差分分析-differential cryptanalysis, the experiment of S-P Cryptosystem Differential Analysis

Rijndael algorithm修正了CBC下BUG的版本(有源代码）工作在：D5。作者：Sergey Kirichenko。--Rijndael algorithm that has revised BUG version under CBC(with source code).It works in D5. author:Sergey Kirichenko。

简单加密工具原程序-simple encryption tools original program

DES加密算法及有关说明(HTM)-DES encryption algorithm and the (HTM)

bmp图像的加密-bmp image encryption

一篇数字水印方面的文章。-a digital watermark articles on the subject.

组播密钥的批次更新算法，基于LKH的单次密钥更新方案和Batch Rekeying方案的原理、结构和密钥更新过程等。并着重对 Batch Rekeying 方案的性能与单次密钥更新方案作了简单的比较。 通过比较和分析得到结论:定时更新的Batch Rekeying 方案在更新开销上比单次更新更有优势 -Multicast key batch update algorithm, Based on the LKH single Rekeying program and the program Batch Rekeying principle, Rekeying structure and processes. And Batch Rekeying focused on the performance of the program with a single Rekeying program with a simple comparison. By comparing and analyzing conclusions : regularly updated Batch Rekeying program in the updated overhead than a single update more advantages

这个例子描述了MD4碰撞，很有研究价值，大家可以仔细研究下-MD4碰撞