基于模糊集合的网格资源访问的信任机制

The Resource Access Mechanism in Grid Based on Fuzzy-Trust

针对网格环境的特点,分析了资源访问过程中所遇到的信任管理问题,通过引入管理域内和管理域间的实体间的信任关系,结合信任的主观性特点,提出了基于模糊集合的网格资源访问信任机制,即通过建立信任链路和模糊算子的合成规则得到用户对资源访问点的信任关系,并与用户要求的信任策略相比较,从而决定是否访问资源.最后建立了网格的信任体系模型.

This paper analyses the question about trust management during the access to grid resources. Through introduction of trust relation among the entities of the intra-domain and inter- domain, the subjective property of trust relation considered, the trust mechanism of resource access in the grid computing based on the fuzzy set is proposed, that is, the user for resource access builds the recommendation trust links and computes the synthetical trust relation based on the synthesis rules of the fuzzy arithmetic operators and through comparing with the trust policy of the user to decide whether to use the resource. At last, the paper gives the grid trust model.