一种新的动态组播源认证方案

发布时间：2018-08-02 17:41

【摘要】：组播作为一种非常重要的网络技术,具有减少网络拥塞等诸多优点,必将得到广泛的使用.但缺乏安全机制严重限制了组播在各种网络业务中的应用和推广.源认证作为安全组播的核心问题之一倍受关注.简要介绍了现存的组播源认证方案,指出其优点和缺点.分析了组播源认证目前所面临的问题,探讨和总结了组播源认证的研究现状及发展趋势.同时,基于流签字认证技术,提出了一种新的动态组播源认证方案,该方案通过接收方对丢包率的反馈信息动态调整算法的步长,根据网络的实时状态,采用最合适的流签名算法,减少了哈希运算的次数及对缓存的需求,提高了认证速度,同时降低了通信量,缓解了网络拥塞.最后与相关的方案进行了性能分析和对比.
[Abstract]:Multicast, as a very important network technology, has many advantages, such as reducing network congestion, and will be widely used. However, the lack of security mechanism severely limits the application and promotion of multicast in various network services. As one of the core issues of secure multicast, source authentication has attracted much attention. This paper briefly introduces the existing multicast source authentication scheme and points out its advantages and disadvantages. In this paper, the problems of multicast source authentication are analyzed, and the research status and development trend of multicast source authentication are discussed and summarized. At the same time, based on stream signature authentication technology, a new dynamic multicast source authentication scheme is proposed. The scheme dynamically adjusts the step size of the algorithm based on the feedback information of packet loss rate from the receiver, according to the real-time state of the network. The most suitable stream signature algorithm is used to reduce the number of hash operations and the demand for cache, improve the speed of authentication, reduce the traffic and alleviate the network congestion. Finally, the performance analysis and comparison with the related schemes are carried out.
【作者单位】：中华女子学院计算机系;北京科技大学信息工程学院计算机系;
【基金】：中华女子学院2012年度校级科研规划课题阶段成果项目资助
【分类号】：TP393.08

【相似文献】