Abstract
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.
| Original language | English |
|---|---|
| Pages (from-to) | 896-910 |
| Number of pages | 15 |
| Journal | Science in China, Series F: Information Sciences |
| Volume | 53 |
| Issue number | 5 |
| DOIs | |
| State | Published - 2010 |
Keywords
- Access control
- Computational trust model
- Trust degree based access control
- Trust graph expression
- Trust management
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