行为驱动的基于角色的信任管理

李斓; 范磊; 回红

引用本文:	李斓,范磊,回红.行为驱动的基于角色的信任管理.软件学报,2009,20(8):2298-2306

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行为驱动的基于角色的信任管理
李斓^1,2, 范磊^1,2, 回红^1,2
1.上海交通大学信息安全工程学院,上海 200240;2.上海信息安全综合管理技术研究重点实验室,上海 200240

摘要:

给出了描述行为驱动的信任管理语言RT_B.将变量引入到角色中可以记录用户的累积行为状态;行为驱动的信任规则根据用户已发生的行为调整其在本信任域中被分配的角色;组合规则提高了信任判定的效率;信任策略更新规则允许信任域在系统状态发生变化时自动调整信任策略.描述了行为驱动的信任管理的实现框架,并讨论了优化实现的几种机制.

关键词: 信任管理行为驱动基于角色信任规则信任委托

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基金项目:Supported by the National Natural Science Foundation of China under Grant No.60803145 (国家自然科学基金); the National High-Tech Research and Development Plan of China under Grant Nos.2008AA01Z409, 2007AA01Z473 (国家高技术研究发展计划(863))

Behavior-Driven Role-Based Trust Management

LI Lan,FAN Lei,HUI Hong

Abstract:

RT_B, the language describing behavior-driven trust management, is given. Variables are introduced into roles to maintain the cumulate behavior status of the users. Behavior-Driven credentials modify users’ assigned local roles in a trust domain according to the behaviors enforced by the users. Combined credentials improve the efficiency of trust determination. Trust policy update credentials allow trust domains to update trust policies automatically when the system statuses are changed. Implementation framework of behavior-driven trust management is described. Several optimization mechanisms of realization are discussed.

Key words: trust management behavior-driven role-based trust credential trust delegation