this visual basic source code,perhaps usefull 4 you

Converst a bit array into a single byte and vice versa

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

oracle9i官方培训教材,经典中的经典-Oracle9i official training materials, classic classic

DES加密算法的C＋＋实现-DES encryption algorithm in C++

椭圆曲线公钥密码算法,可用于加密和数字签名等应用，该版本算法是有限域GF（p）上的算法-Elliptic curve public key cryptography algorithms can be used for encryption and digital signature applications, the version of the algorithm is a finite field GF (p) the algorithm

我写的一个基于MD5算法的一个简单的注册程序，实现很多程序上使用的注册认证机制-I wrote an MD5 algorithm based on a simple registration process to achieve a lot of programs used on the registration of authentication mechanisms

md5算法是计算机密码学里经典的算法，实用价值很高，设计的关键在于随机数的产生，本程序采用传统的利用计算机时钟采集种子的办法生成随机数种子。-md5 password algorithm is computer science Lane classic algorithms, highly practical, design is the key to the selection of random numbers, the procedure using the traditional use of computer clock seed collection methods generate random number seed.

将其他文件隐藏在BMP图像中！好-other documents hidden in BMP image! Good

用C写的DES加密的一个算法。是很不错的。-Using C written by a DES encryption algorithm. Is very good.

硬盘保护锁,绝对经典，研究硬盘加密的不得不看呀-Hard drive protection locks, an absolute classic, researchers have looked hard disk encryption