不稳定信道上的组播实时认证协议

Real-time Multicast Authentication Protocol over Lossy Channels

在组播认证协议TESLA的基础上引入消息分散算法,提出一个全新的组播认证协议,它能够为不稳定信道上的组播通信提供实时认证。文章最后给出了该协议详细的性能分析。该文提出的组播认证协议是要为每个数据包增加60～80字节的认证信息就可以为很高丢包率(≈50%)的组播通信提供99%以上的实时认证率。协议还增加了系统的可扩展性,可以为分布更广、组员规模更大的组播应用提供安全认证。

Using information dispersal algorithm we propose a new multicast authentication protocol on the base of research in TESLA which can provide authentication for multicast in lossy channels.This paper also discusses the protocol's performance.Only inserting60～80bytes in each package this protocol can provide more than99percent real-time authenticable ratio over high lossy multicast channels(about 50percent loss).This protocol also enhance the system scalability and can provide security authentication for distributive multicast system with more than millions of members.