以黑白名单建构P2P SIP网络电话的语音广告防堵系统

随着Internet的发展,未来的电信网络将是基于IP技术的网络,而SIP是现代网络标准组织所建议的语音、视频多媒体控制协议的首选.近来发生的SIP攻击事件,使SIP安全性议题浮上台面.将P2P的观念套用到传统的SIP架构上,以期减少传统的SIP架构被攻击之风险.但网络电话的弱点还是会出现在新一代P2P SIP的架构上,如:垃圾广告语音(Spaminternet telephony,SPIT)的插入,由于SPIT问题与通信架构无关,可能会形成垃圾短信泛滥的问题.为此本研究透过P2P SIP架构,建置适合此模式下的网络语音广告防堵系统,可在P2P动态环境下,进行黑白名单同步更新与维护管理.

A SPIT Prevention System by Black/White List for P2P SIP

Along with the rapid implementation of Internet infrastructure,the future telecommunication framework will heavily rely on IP technologies.Proposed by numerous standardization organizations,the Session Initiation Protocol(SIP)is becoming one of the best available communication protocols for integrating voice,video,and multimedia for the next generation.However,security issues have been raised after several SIP-related attacks occurred in recent years.To effectively reduce the possible security risks on utilizing traditional SIP,integration of P2P concepts onto the SIP framework can be a feasible solution.However,vulnerability issues inherited from traditional SIP for the Internet telephony,such as SPam Internet Telephony(SPIT)need to be addressed even under P2P SIP environment.We are proposing a SPIT prevention system for the specially designated P2P SIP framework that can synchronize and maintain an up-to-date Black-and-White list under the P2P dynamic environment.