基于行为的网格虚拟组织安全信任模型研究

Secure Behavior-based Trust Models Study in Grid Virtual Organization Environment

与传统的安全授权机制相比,信任管理是一种更具表达力,更直接、高效、完善的分布式授权方式,可以适应网格及其应用发展的安全需要。该文研究了信任管理系统中的关键部分――信任模型,对基于行为的网格信任模型,即基本网格行为信任模型和信任中介者模型进行了研究剖析,分析了其优点和不足,并对网格信任模型的未来进行了展望。

Compared with traditional security authorized mechanisms, trust management is a more competitive, direct, efficient and sound distributed authorization, which can be adapted to grid applications deveIopment. This paper studies the key part of trust management system trust models. Two behavior-based trust models： basic network behavior-based trust model and trust intermediary-based model are studied and analyzed. The paper analyses their advantages and weaknesses respectively. Some future outlook for grid trust models is offered.