一种基于序列特征的Skype流量识别方法

摘要

作为最受欢迎的基于P2P技术的VOIP客户端，Skype采用专有通信协议及多种高强度的加密技术保证通信安全，具有很强的保密性和便捷性。为了准确识别Skype流量，本文在分析Skype电话网络结构和通信协议的基础上，提出了一种基于序列特征的 Skype流量识别方法，并设计和验证了相应的实验系统。实验结果表明，该实验系统具有很高的识别效率。%As one of the most popular VOIP client based on P2P technology,Skype uses proprietary communication protocol and a variety of high-strength encryption technology to ensure the safety communication ,so it has strong confidentiality and convenience. To identify the skype traffic accurately, on the basis of the analysis of Skype network structure and the foundation of the communication protocol,a identification strategy was proposed via the unique sequence signatures.Then, we design and implement the practical system .The experimental results show that our practical system with high efficiency in identifying Skype flows.