本聊天程序采用2048bit 的RSA 数据加密算法对数据进行加密和数字签名后发出，因为RSA加密信息需要大量的时间，因此本程序适合用来传递密钥或对非常重要且信息量较少的网络通讯。本程序编译后运行界面如上所示，正常聊天需要进行设置，设定对方IP地址，QQ号或电子邮件地址，接下来就可以发消息了，程序还可以完成如图所示的其它功能。-The chat program uses 2048bit RSA encryption algorithm for data encryption and digital signature is issued, because RSA encrypted information requires a lot of time, so this program is suitable for transfer to keys or very important information and less network traffic . After compile and run this program interface as shown above, normal chat needs to be set, set the IP address of the other party, QQ number or email address, then you can send an announcement, the program can also be completed as shown in the other functions.