支持属性委托模型中委托撤销研究

计算机科学 ›› 2010, Vol. 37 ›› Issue (6): 217-219.

支持属性委托模型中委托撤销研究

叶春晓，符云清

(重庆大学计算机学院重庆400044),(重庆大学软件学院重庆400044)

出版日期:2018-12-01 发布日期:2018-12-01
基金资助:
本文受国家自然科学基金(No.60803027)资助。

Study on Delegation Revocation in Attribute Supported Delegation Model

YE Chun-xiao,FU Yun-qing

Online:2018-12-01 Published:2018-12-01

摘要/Abstract

摘要： 支持属性的委托模型(AI3DM)中，受托者必须同时满足委托先决条件(CR)和委托属性表达式(DAE)才能获得委托权限或角色。在该模型中，委托撤销完成将委托出去的权限收回到委托者处的工作。首先介绍了A13DM提出的两种新的撤销模式及其带来的多步委托中委托与撤销的优先级问题。然后详细讨论了委托与撤销的关系，对两种解决办法:“先来先响应”和“先撤销后委托”进行了分析，提出了两种方法的适应场合。

关键词: 访问控制，R13AC，委托，撤销，属性

Abstract: In Attribute Supported Delegation Model (ABDM) , dclegatee must satisfy both delegation prerequisite condilion (CR) and delegation attribute expression (DAE) when assigned to a delegation role. In AI3DM, revocation focuses on how to revoke those delegated roles or permissions from delegatee. This paper first introduced two new sorts of revocations,which bring about priority between multi step delegation and revocation. hhen analyzed the relation between delegation and revocation and proposed two solutions; "first rectuest first response" and "revocation first then delegalion". We also discussed different situations fitting these two solutions.

Key words: Access control, RBAC, Delegation, Revocation, Attribute

叶春晓，符云清. 支持属性委托模型中委托撤销研究[J]. 计算机科学, 2010, 37(6): 217-219. https://doi.org/

YE Chun-xiao,FU Yun-qing. Study on Delegation Revocation in Attribute Supported Delegation Model[J]. Computer Science, 2010, 37(6): 217-219. https://doi.org/

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