文件加密压缩解压缩系统

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

PGP 是一种混合密码系统。当用户使用PGP 来对纯文字加密的时候， PGP 首先会压缩这 段纯文字。数据压缩能够节省调制解调器传输时间以及磁盘类空间，还有更重要的、强化密码法的 保密程度。-PGP is a hybrid cryptosystem. When the user to use PGP to encrypt the text, PGP will first this text compression. Data compression can save time and modem transmission disk space, and more importantly, to strengthen the password confidentiality law.

Openssl & ActivePerl-5.8 & 编译要点说明,按照说明很容易通过编译，本人已经测试过，祝你好运。-Openssl ActivePerl- Compiler 5.8 points that can easily follow the instructions through the compiler, I have tested, I wish you the best of luck.

This software calculates the crc32 polynomial of a string. There is one class cCrc32.

标准C++书写的BlowFish加密算法，和加密文件演示，速度较快-written in standard C BlowFish encryption algorithm, and encryption paper presentations, faster

alsmds；lasmd asld aksmda akms；as amskd afbkaj ahf ahsva hashn agdkamns hsa dMYBAMSNV AMSHBM khdanb smashnva mscaksjn fvamsvahsvn ancbkajb cmanskjanb ca kjab scmn askan cka kajbamnb ahn c。

des算法的一种升级算法-an update algorithm

AES候选算法,安全性高于3DES而速度快过DES-candidate for AES, 3DES and safe to speed faster than DES

用于android jni的c语言版 3des算法  

打包文件，VB源码，还好，值得学习和使用.-Packing paper, VB source, Fortunately, it is worth learning and use.