东南大学学报（自然科学版）2011，Vol.41Issue(2)：242-246,5.DOI:10.3969/j.issn.1001-0505.2011.02.006
P2P环境下基于兴趣的分布式信任模型
Distributed interest-aware trust model for P2P environments
摘要
Abstract
To solve the uncooperative behavior and malicious attack problems of nodes in P2P( peerto-peer) networks, a distributed interest trust model (DITM) is proposed, which clusters nodes with similar interest into the same interest domains, so that the hardness of constructing direct trust relationship between nodes due to asymmetric interest feature is solved. The DITM uses interest similarity to describe nodes service similarity in their biased domains, and uses it to weight recommendations of different nodes when calculating domain service trust of a specific node. Service trust values of a node in different domains form a service trust vector, which describes the service details of the node in each domain. By this means, the DITM can defend attacks of malicious nodes on specific domain, and provide incentives for good nodes to contribute resources in each interest domain. Simulation results show that the convergence time, download success ratio and security of the DITM are remarkably improved compared with the current typical trust model.关键词
对等网络/兴趣域/域推荐信任度/域服务信誉/兴趣相似度Key words
peer to peer network/ interest domain/ domain recommendation trust/ domain service reputation/ interest similarity分类
信息技术与安全科学引用本文复制引用
杨莉,张毓森,邢长友,张涛..P2P环境下基于兴趣的分布式信任模型[J].东南大学学报（自然科学版）,2011,41(2):242-246,5.基金项目
江苏省自然科学基金资助项目(BK2010133). （BK2010133）
