这是一个加密程序，可对字符串进行加密，字符串和密钥的内容和长度可以设置。...

一个用c编写的文件加密器，可以加密任何类型的文件，速度很快！for dos!-with a paper prepared by the encryption device that can encrypt any type of document, very fast! For dos!

MD5加密算法源代码,对于初学者有很好的借鉴意义！-MD5 encryption algorithm source code, there are very good for the beginners learn the meaning of!

一些重要的加密算法的实现---主要是针对大学密码学课程中的算法实践，例如： 维吉尼亚密码，置换密码，移位密码-Some key encryption algorithm--- mainly aimed at the realization of the University of cryptography algorithms for practical courses, such as: Virginia password, replacement password, password, and so shift

简单的 密码问题 初学者-simple passwords for beginners

MD5的加密算法！-MD5 encryption algorithm!

RSA加密实现，希望对大家有所帮助，研究算法是很让人痛苦的事情，大家多多努力-RSA encryption realize, I hope to be helpful to everyone to study the algorithm is a very painful thing, a lot of U.S. efforts

MD5加密算法，有个 getMD5() 方法可以传入字符串并生成一个 MD5 码。-MD5 encryption algorithm, there" s getMD5 () method can pass a string and generate an MD5 code.

采用对称密钥加密的3DES算法经典程序源码-using symmetric key encryption algorithms 3DES classic procedures FOSS

文件加密，可以对任意文件进行加密-file encryption, to arbitrary files can be encrypted

数字证书处理程序-procedures for handling digital certificates