Efficient Non—Repudiation Multicast Source Authentication Schemes

摘要

In secure multicast communication, packet source authentication is a bot-tleneck problem due to the dynamic property of the multicast group, unreliability of datatransmission and the large number of data packets. This paper proposes a novel authentica-tion scheme called B-MSAS (Balance Multicast Source Authentication Scheme) that can beused to solve this problem, in which a new message authentication technique is introduced.This scheme dramatically reduces the signature size overhead and raises the signature rate. Itprovides the non-repudiation service, high loss resistance, and can easily be scaled up to poten-tially millions of receivers, and hence has a sweeping applicability. It should have applicationsto many practical problems.