论文部分内容阅读
P2P直播系统在当今互联网上的应用越来越广泛,相对于P2P文件共享系统,其对数据传输的实时性要求更高,因此对该类系统实时性的破坏,即延迟攻击,产生的危害极大。通过分析相关理论模型,该文指出P2P直播系统在实时性方面存在安全脆弱性,基于Eclipse攻击提出了No-Offer、Delay-Chunk和No-Chunk延迟攻击方法,并提出了基于信誉机制的路由表清洗防御策略。在PlanetLab平台上基于PeerStreamer实施了真实的互联网实验,证明了Eclipse延迟攻击对当前系统的危害和该文防御策略的有效性。
Compared with P2P file sharing system, P2P live broadcasting system has more and more applications on the Internet today, which requires more real-time data transmission. Therefore, the real-time destruction of such system, namely delayed attack and extreme harm Big. By analyzing the relevant theoretical models, this paper points out that P2P live system has security vulnerabilities in real-time. Based on the Eclipse attacks, the No-Offer, Delay-Chunk and No-Chunk delay attacks are proposed and the routing table based on reputation mechanism Cleaning defense strategy. Based on PlanetLab platform, PeerStreamer is used to implement real Internet experiments, which proves the harm of Eclipse delay attacks on the current system and the effectiveness of the defense strategy.