A computational trust model for access control in P2P

被引：0
|
作者：
Bo Lang
机构：
[1] Beihang University,State Key Laboratory of Software Development Environment
来源：
Science China Information Sciences | 2010年 / 53卷
关键词：
trust management; access control; trust degree based access control; computational trust model; trust graph expression;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Trust brings a new method for building scalable and fine-grained access control mechanism in P2P systems. The quantificational expression of trust and the calculation of trust in a trust network are the basis of trust degree based access control. In this paper, the properties of trust is analyzed by referring to the fruits from social science; the semantics of trust in the context of access control is described, and a trust degree based access control model named TDBAC is introduced. Basing on the properties and semantics of trust, a computational trust model which includes a multilevel comprehensive evaluation method for expressing direct trust and calculators for computing recommended trust is put forward. To compute trust in a trust network, an algorithm that transforms a trust network to a computable expression is given. The algorithm simplifies the computation process and is also flexible.
引用
收藏
页码：896 / 910
页数：14
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