Abstract: A new P2P agile trust model is proposed so as to meet the security need in the partially decentralized topology P2P network. Computing trust value is agile for locating in peer group or between peer group. The paper introduces the strategy about computing trust value, maintaining the record of history remember, preventing sybil attack and slandering and cooperative cheat. Designed and implemented prototype system indicates the model is feasible.

Key words: peer to peer computing, partially decentralized topology, trust model

摘要： 针对P2P网络的安全需求，提出了一种新型P2P敏捷信任模型。该模型建立在半分布式拓扑结构上，安全对等组内、组间的信任值计算具有良好的敏捷性。对于模型中的信任度求解、节点成员表的历史记录维护、冒名、诋毁及协同作弊等关键问题给出了解决策略。设计并实现的原型系统进一步验证了模型可行性。

关键词: 对等计算, 半分布式拓扑, 信任模型

CLC Number: 

• TP393