根据主流即时通软件通信数据明文传输的特点,利用网络捕包工具,采用逆推的方法,分析目前流行的即时通软件不公开且不统一的文本消息传输协议。着重描述了ICQ文本消息传输协议的格式,并且对ICQ、AIM、MSN、雅虎通几个主流即时通软件的协议特征进行了比较说明,为进一步的文本消息监控提供依据。
Based on the exoteric communication data between popular instant messenger client software,using sniffer tool of network, we analyse the unopened and nonuniform text message transmitting protocol of those software by converse way.Particularly describe the form of ICQ text message transmitting protocol and compare the characteristic of ICQ,AIM,MSN and Yahoo Messgeger protocol. Provide reference for text message transmitting monitor in the future.