Efficient Non-Repudiation Multicast Source Authentication Schemes

In secure multicast communication, packet source authentication is abottleneck problem due to the dynamic property of the multicast group,unreliability of data transmission and the large number of data packets.This paper proposes a novel authentication scheme called B-MSAS (BalanceMulticast Source Authentication Scheme) that can be used tosolve this problem, in which a new message authentication technique isintroduced. This scheme dramatically reduces the signature size overheadand raises the signature rate. It provides the non-repudiation service,high loss resistance, and can easily be scaled up to potentiallymillions of receivers, and hence has a sweeping applicability. It shouldhave applications to many practical problems.