Md5碰撞

提供服务端登陆验证程序（验证码随机改变，防止非法进入）； 提供服务器控制程序，管理员可以允许、屏蔽和删除一个注册用户的登陆客户端； 任何改变访问地点的行为，都必须得到管理员的授权，否则无法登陆系统； 即使知道其他用户的密码也不能登陆系统。-provide certification services-landing procedures (Random Verification code change to prevent illegal entry); Provide server control procedures, administrators can allow, shielding and delete a user"s landing client; Any change in location of the visit have to be authorized administrators, whether while not landing systems; even if they know the password for other users can not landing system.

数据加密技术之几种算法 sa-faq-1-data encryption technology several algorithms rsa- faq-1

共享软件加密算法库-sharing software encryption algorithm library

数据加密的一个库：Crypto++，功能很多，接口完善。-A data encryption library: Crypto++, Features a lot of perfect interfaces.

twofish的加密算法-twofish encryption algorithm

一个关于密码算法RSA的实现程序- About crypto-algorithm RSA realization procedure

我用C#做的一个对字符串加密的程序，加密对象为26个字母大小写和0到9的数字，实现的是替代法-I used C# do a strings encryption procedures, encryption targeted at 26 case-sensitive alphanumeric 0-9 and figures to achieve the substitution

极好的加密程序，DES的接班人，源码是DEHLPHI的Pascal，编译后可直接运行-Excellent encryption, DES s successor, is DEHLPHI source of Pascal, the compiler can be run directly

this visual basic source code,perhaps usefull 4 you

this a file that encrypt and decrypt a file in vb-this is a file that encrypt and decrypt a file in vb