一种基于域验证的垃圾语音安全防护检测方案设计

由于IP语音通信过程的时延敏感性以及内容理解上的困难,垃圾语音信息(SPIT)成为一种重要的安全威胁,SPIT的检测防护也成为亟待解决的关键问题.针对此问题,分析了垃圾语音信息的特点,并基于应用模式进行了分类.针对SPIT的防护,从"域验证"防护体系、"PULL"模式的SIP协议改进以及预分类协同三个方面阐述了垃圾语音过滤及检测方案.相关实现及验证表明,该方案能够较为有效地解决VoIP应用中的垃圾语音过滤及防范.

Architecture of a Solution to SPIT Detection/Prevention Based on Domain Verification

VoIP is an important application in next generation convergence network,and SIP is a key application protocol of VoIP.However,the SIP-based applications are facing to lots of challenges to information security,such as spam over Internet telephony(SPIT),since VoIP is sensitive to time delays and very difficult to understand the Internet messages correctly and rapidly and SPIT is hard to detect.To solve this problem,the architecture of the solution to SPIT detection/prevention based on domain verification is designed with the SIP amelioration in PULL mode and pre-classification cooperation both described for SPIT filtration/detection.The implementation and verification results reveal that the solution can provide an effective means for SPIT rejection.