%0 Journal Article
%T A Distributed Trust Mechanism Directly Evaluating Reputation of Nodes<br>一种直接评价节点诚信度的分布式信任机制
%A PENG Dong-Sheng~ LIN Chuang LIU Wei-Dong
%A <br>彭冬生
%A 林闯
%A 刘卫东
%J 软件学报
%D 2008
%I 
%X Reputation-Based trust mechanism can efficiently solve the problems of virus flooding and malicious behaviors in P2P network. Most of the existing trust mechanisms use a single reputation value to depict the node's reliability, which cannot prevent malicious nodes from concealing dishonest selling behaviors with honest buying behaviors, and cannot separate the new node from the malicious one. This paper provides a new distributed trust mechanism, which iteratively calculates for each node a global seller reputation value and a global buyer reputation value based on transaction history, and whether a node is trustable or not can be identified from them. Comparison experiments and performance analysis between the mechanism and EigenTrust show that the mechanism can reduce the global reputation value of malicious node rapidly, restrain collusion attack, and decrease probability malicious transactions.
%K P2P network
%K distributed trust mechanism
%K reputation
%K DHT (distributed hash table)
%K collusion attack<br>P2P网络
%K 分布式信任机制
%K 信誉
%K 分布式哈希表
%K 合谋攻击
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=7735F413D429542E610B3D6AC0D5EC59&aid=14B81E0F6A36CA89BDFA01394AA379D7&yid=67289AFF6305E306&vid=2A8D03AD8076A2E3&iid=E158A972A605785F&sid=7C8C2BAFC9BA0571&eid=2F26E27A20AEB31F&journal_id=1000-9825&journal_name=软件学报&referenced_num=1&reference_num=11