A Mediator-Based Certified Reputation Scheme

Certified reputation that can be saved by the owner simplifies reputation propagation, it moves the burden of obtaining and maintaining trust information from the trust evaluator to the peer being evaluated who is incentive to do so. But the reputation owner can discard some disadvantageous certified reputation without being detected. In this paper, a mediator-based certified reputation scheme (MCR) is proposed through appending a serial number to certified reputation.