Trust Delegation and Discovery Method

Trust management is a new kind of access control method which is dynamic and scalable.Based on the present trust management research and the trust-based interactive mechanism of human society,this paper submits a trust degree based access control model,and mainly probes into the problems of trust delegation and trust relation discovery.Based on the trust propagating model of human society and the self-organization theory,the paper proposes a self-organized trust delegation model,which can achieve dynamic and extensive trust propagation.By referring to the idea of the distributed routing algorithms in computer networks,it puts forward a distributed trust tracing algorithm,whose time complexity is O(k)(k is the number of entities in the trust relations).The algorithm prominently proves the efficiency of trust relation discovery compared with other algorithms.