一种P2P网络中的隐蔽搜索模型  

A Concealment Searching Model in P2P Network

作　　者：王进[1,2] 顾乃杰[1,2] 田舟贤[1,2] 

机构地区：[1]中国科学技术大学计算机科学与技术系,合肥230027 [2]安徽省计算与通信软件重点实验室,合肥230027

出　　处：《计算机研究与发展》2008年第z1期370-374,共5页Journal of Computer Research and Development

基　　金：教育部博士点基金项目(20060358011)

摘　　要：随着peer-to-peer(P2P)网络应用的不断发展,网络中的隐私保护问题引起了广泛的关注.当前研究主要集中在匿名通信机制的实现,而这些匿名技术通常需要复杂的系统结构,增加了开发维护代价以及网络管理的难度,同时也增大了传输延迟.针对P2P网络,尤其是无搜索服务器的P2P网络中用户搜索内容隐私保护的问题,提出了基于单向函数和Soundex算法的隐蔽搜索模型.该模型能够保护用户的搜索内容、抵抗窃听、重放、身份冒充等攻击,并且支持精确搜索和模糊搜索.分析表明隐蔽搜索模型具有较高的安全性和搜索有效性.With the development of application of the peer-to-peer networks, the problem of the privacy preservation has aroused extensive concern. Though many previous researches have focused on the realization of the anonymous communications, these anonymous technologies usually need complex structures which increase the cost of maintenance and the difficulty of management, and prolong the transmission delay. Aimed at the privacy preservation of searching content in P2P network, especially the network without searching server, a concealment searching model based on one-way function and Soundex algorithm is proposed. It can protect searching content of peers and resist attacks of snooping, replay, disguise and so on, meanwhile the model support accurate search and fuzzy search. According to the analysis, this concealment searching model achieves relatively high security as well as searching effectivity.

关 键 词：隐蔽搜索 HASH函数 RSA算法 Soundex算法 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]