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本软件是根据DES加密算法，编成的应用程序。-software is based on the DES encryption algorithm into the application.

UPXShell--源代码 （ASM版本的，及其高效精妙）-UPXShell- source code (ASM version, and its efficient exquisite) [

Serpent加密算法源代码-Serpent encryption algorithm source code

ENIGMA3模拟WW II加密算法-ENIGMA3 simulation WW II encryption algorithm

文件加密技术一例给文件加密的技术很多,其中又分为不同等级,以适合不同场合的需要.这里给出最简单的文件加密技术,即采用文件逐字节与密码异或方式对 文件进行加密,当解密时,只需再运行一遍加密程序即可.-file encryption technology to the case file encryption technologies lot, which will be divided into different levels, to suit the needs of different occasions. Here is the most simple file encryption technology, which adopts a case-by-byte file with the password or different ways to document encryption, decryption, only re-running again encryption procedures.

crypt++ 3.2版本，含有几十个加密算法实现-crypt++ 3.2 version, it has realised tens of encrypting algorithms

tea c加密算法源码，希望对大家有所帮助。-tea c encryption algorithm source code, and they hope to be helpful to everyone.

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.

计算机安全的一本很好的书,其中有关安全密要等重要的内容,是一本不错的书-computer security,an introduction to computer security,you can learn much from it , a very good book

是DES的编码密码算法，非常适合初学者学习，欢迎使用。-DES cryptographic algorithm is the encoding is very suitable for beginners to learn, welcome to use.