对文件的加密解密的演示程序,主要是练习对文件和字符串的基本操作-document encryption and decryption of the demonstration program, the practice is mainly paper and string for the basic operation

用JAVA编写的用密码学中DES算法加密解密文件的程序-prepared with Java Cryptography with the DES encryption algorithm declassified document procedures

这是一个通过字符串操作来实现文本加密解密的源程序,通过打乱原文本字符串的顺序,隐藏信息,通过解密,可以回复原字符正常顺序,达到加密解密的目的.压缩包包括源程序文件,再vc中运行.-This is a string manipulation through the text to achieve encryption and decryption of the source, through the disruption of the text string in the order, hide

文件操作（文件打开、文件加密、文件解密）-operation about the file