Abstract: Aiming at large flow and inefficiently to incent peer in the current trust model, this paper proposes a Trust Model base on Chord Layer construction(TMCL). It can access the information efficiently and alleviate flow impact which widely exists in trust model based on recommendation. At the same time it adopts bi-direction select mechanisms in transaction which prevents the malicious peers and incentive peer provides better services. Experiment shows that compared with the existing trust model, TMCL has better performance in reducing network overhead and improves the QoS in network.

Key words: P2P network, trust model, layer construction, bi-direction selection

摘要： 针对现有信任模型流量过大、节点不能很好被激励的问题，设计一种基于Chord的P2P层次化结构信誉模型TMCL。在高效获取信息的同时，减轻基于推荐的信任模型中普遍存在的流量冲击问题。在交易中采用双向选择机制，遏制节点作恶，激励节点积极主动地提供服务。实验证明，TMCL较已有的信任机制在降低网络性能开销和提高网络服务质量方面都取得了较好的效果。

关键词: P2P网络, 信誉模型, 层次化结构, 双向选择

CLC Number: 

• TP393.03