使用BCB5开发的一个简单的3DES演示，文件是用密文潜水…

des加密　ElGamal算法既能用于数据加密也能用于数字签名，其安全性依赖于计算有限域上离散对数这一难题。 　　密钥对产生办法。首先选择一个素数p，两个随机数, g 和x，g, x

用Visual Studio 2003编的文件加密程序，能对文件进行二进制读入，再和密码做异或，保存。版本一-Visual Studio 2003 for use of file encryption program, can read a binary file, and then do XOR and password, save. Version 1.0

这是个好东西，可以代替系统的记事本。-This a good thing, the system can replace the notebook.

md5算法，实现给一个512bir数据块加密，程序有详细的注释，-md5 algorithm, to realize a data block encryption 512bir, procedures have detailed notes,

汇编加密文件另一例。-another compilation document encryption cases.

利用PGP加密技术保护电子邮件安全,很不错的-The use of PGP encryption technology to protect e-mail security, very good

盲人输入法，利用微软的TTS实现盲人书法-blind input method, using Microsoft"s TTS achieve blind calligraphy

从一个随机文件读取256字节数据形成数据区DArea，再应用洗牌法所给的方法生成0~255的一个全排列DTab。试分别写出"求DArea中全部数据经 （1）以DTab为S-盒； （2）以DTab为P置换 -from a random file read 256 byte data area DArea form data, re-shuffling in law application to the formation of 0 ~ 255 DTab a full array. Try to write were "seeking DArea by which all data (1) DTab S-boxes; (2) DTab replacement for the P

第三代移动系统中以Kasumi为内核的另一加密算法-f8算法的VC++实现-Third-generation mobile system to Kasumi for kernel-f8 encryption algorithm to another algorithm VC++ Realize

Arithmetic for integers of almost unlimited size for C and C++. Developed and copyrighted by Ralf Dentzer-Arithmetic for integers of almost unlimit ed size for C and C. Developed and copyrighted by Ralf Dentzer