Cryptography and Network Security, 4th Ed.

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.

双随相位加密系统的加密程序，调试好的，没有错误-4f

这个是数据加密标准的VC算法-This is a standard data encrypt algorithm of VC

PB使用MD5加密,可以有效解决PB开发中登录密码使用明文的问题-PB using MD5 encryption, can effectively resolve the PB Password development issue of the use of explicit

一个非常好用而且实用的非对称加密算法，里面有实例，完整的源码。-a very handy and practical non-symmetric encryption algorithm, there are examples, complete source code.

这个是IDEA加密算法的源代码(C语言版本)-This is the IDEA encryption algorithm source code (C language version)

DCPcrypt Cryptographic Component Library

这是RSA算法的原代码实现应该直接能用,已调试好-This is the original RSA algorithm implementation code can be used directly, has good debugging

c51-----des --- 可以完成加密解密等功能，测试通过没问题-c51----- des------ to be completed, such as encryption and decryption functions, the test No problem! ! !

一个RSA算法的完整实现，有超长密钥-an RSA algorithm integrity, and it is extra-long keys