加密解密技巧，DES，AES， RAS等算法。Java代码可以在EDI中运行实现。-This is a documentation for encryption and decryption.

基于web socket7原理，以及xmpp协议等即时通讯协议，ras base64加密算法，实现的类似qq的通讯软件-Based on the socket7 web principle, as well as the XMPP protocol, such as instant messaging protocol, Base64 Ras encryption algorithm, to achieve a similar QQ communications software