基于时空相关性的P2P 网络信任模型倡.pdf

文档介绍：第 28 卷第 1 .1
2011 年 1 月 Vol .2011No
Application Research puters Jan
基于时空相关性的 P2 P 网络信任模型倡
秦志光, 黄科瑞
(电子科技大学计算机科学与工程学院, 成都 611731)
摘要: 2 网络的匿名性、自组织性及高度动态性,使得基于 2 网络的病毒、木马大量流行,威胁网络安全,
P P P P
而信任机制能够有效缓解多种安全问题。针对现有信任模型的不足,提出在具有时间特性的信任模型
DyTrust
基础上,将空间特性纳入考虑,建立基于时空相关性的信任模型。理论分析及仿真实验结果显示:本模型具有较
好的动态适应能力,能够有效防止各种恶意行为。
关键词: 2 网络; 信任模型; 时间相关性; 空间相关性
P P
中图分类号: 393 文献标志码: 文章编号: 1001唱3695(2011)01唱0293唱05
TP A
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doi j issn
唱 2
Time space based trust model for P P system
唱, 唱
QIN Zhi guang HUANG Ke rui
( School puter Science Engineering, University of Electronic Science Technology of China, Chengdu 611731, China)
& &
Abstract: , 唱 2 2 唱,
The anonymity anization. 2 and dynamicity of P works make P P based viruses and Trojan prevalent.
which pose threats to security P P trust models can effectively abate this situation and settle many. security problems
This唱 paper intended to present a more effective trust model against the defects of current trust models .And presented a new
time space based trust model which made use唱 of DyTrust model and took space into account additionally Theoretical analysis
and simulation experiment. show that the time space based trust model is effective on modeling dynamic trust relationships and
resistingKey words attacks: 2 ; ; ;
P work trust model time co