开放计算环境中的信任管理模型研究与实现

Research and Modelization of Trust Management in Open Computing Systems

本文讨论了信任管理的定义,对开放计算环境下的安全访问机制进行了分析,并指出现有信任管理机制中存在的缺乏统一灵活的断言描述方式和对信任关系缺乏监视与管理等问题。本文提出了基于RDF的开放计算环境中的信任管理原型,实现了对开放环境中资源访问的认证和授权。设计了一种灵活实用的断言描述形式,并在实验环境中对原型的性能和安全性作出了分析。

This paper discusses the definition of trust management and some existing trust management systems. While the previous work provides the basis for expressing and verifying trust, it does not address the concurrent problems of how to continuously monitor and manage trust relationships over time. In this paper we analyze the authorization mechanism and some limitations in open computing systems based on some previous work, and bring forward a trust management prototype based on RDF for open computing systems.