摘要
SIP具有开放、灵活、可扩展等多方面明显优点,但对媒体流部分并没有制定加密标准。本文分析了sip所面临的几种网络攻击手段和其自身的安全机制,充分利用SIP的可扩展性,提出一种通过密钥交换实现网络媒体流对称式加密的新方法,并对其安全性进行了分析。
SIP has many such advantages as opening,flexibility and expendability,but it does not establish any encrypting standard for the media-flow part. This paper analyses several network attack means SIP is faced with and its own safety mechanism,and making use of the expandability of SIP,this paper puts forward a new method of achieving the symmetrical encryption of the network media current by means of key exchange,and makes an analysis to its security.
出处
《微计算机信息》
北大核心
2008年第6期104-105,126,共3页
Control & Automation
