RLH: receiver driven layered hash-chaining for multicast data origin authentication

In this paper, we propose an efficient multicast data origin authentication protocol based on a novel layered hash-chaining scheme. Our protocol tolerates packet loss and guarantees non-repudiation of media-streaming origin. Furthermore, our protocol allows receivers to make the decision regarding the authentication information redundancy degree depending on the quality of reception in term of packet loss ratio. This novel technique allows to save bandwidth since the packet loss distribution over a large scale network is likely to be not uniform. We have simulated our protocol using NS-2, and the simulation results show that the protocol has remarkable features and efficiency compared to other recent data origin authentication protocols.