The Study of P2P Trust Management Model and Certificate Revocation Approach

Because of the open, distributed and dynamic character of Peer-to-Peer(P2P), the security problem has become more difficult. It is significant to accomplish reasonable access control to resource in network. This paper proposes a trust management mode based on subjective trust value among entities for establishing initial trust relationship among entities and supporting authorization considering entities trust value. To accomplish certificate revocation, the authors provide revocation information publishing algorithm HYBRID and a method based on Bloom Filter vector to judge certificate validity. Experiments show the good performance of the proposed approaches.