摘要
信任管理(TM)是面向开放多域环境的分布式授权技术。TM系统从网络中搜索委派凭证以进行分布式授权决策,面临效率和可用性问题。本文提出一种基于SPKI的分布式凭证存储框架,将委派凭证冗余地存储到相关实体,以避免委派凭证的动态搜索过程,有助于解决现有TM系统凭证管理的局限性。
Trust Management (TM) is a distributed authorization technology for open multi domain environments. TM systems search delegation credentials from the network for making distributed authorization decisions, which is not efficient and highly available. This paper proposes a distributed credential management framework, which stores delegation credentials redundantly at relevant entities to avoid dynamic search processes of delegation credentials. Our approach is helpful in overcoming the limitations of the credential management mechanisms of the existing TM systems.
出处
《计算机工程与科学》
CSCD
北大核心
2009年第7期23-24,49,共3页
Computer Engineering & Science
基金
国家973计划资助项目(2005CB321800)
国家863计划资助项目(2006AA01Z198
2007AA010301)
关键词
信任管理
委派
凭证存储
trust management
delegation
credential storage