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。(This chat program uses the RSA data encryption algorithm of 2048 bits to encrypt and digitally sign the data, because RSA encrypted information takes a lot of time, so this program is suitable for transferring keys or network communication with very important and less information. The compiled interface of this program is as shown above. Normal chat needs to be set up. The IP address, QQ number or email address of the other party should be set. Then the message can be sent. The program can also complete other functions as shown in the figure.)