| 基于RBAC的具有时空约束的工作流授权模型 |
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| 引用本文： | 徐洪学,郭秀英,刘永贤.基于RBAC的具有时空约束的工作流授权模型[J].东北大学学报(自然科学版),2006,27(2):217-220. |
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| 作者姓名： | 徐洪学 郭秀英 刘永贤 |
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| 作者单位： | 东北大学,机械工程与自动化学院,辽宁,沈阳,110004;营口职业技术学院,辽宁,营口,115000 |
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| 基金项目： | 国家“十五”重大攻关课题项目(制造业信息化关键技术攻关及应用工程:2001BA201A14) |
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| 摘 要： | 结合具体工作流系统实例,提出一个基于RBAC的具有时空约束的工作流授权模型TSCWAM.与传统的访问控制授权模型不同,该模型提出了时空权限的概念,表示基于RBAC的工作流授权不仅受时间约束,还受空间范围限制,即被授权者只能在某个时间段和空间范围内才能对某个任务执行某种操作,从而既可以保证组成工作流的任务只能被属于某个特定角色的用户执行,又可以保证在授权流与工作流同步的基础上,实现授权流与空间范围动态变化的相互协调.
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| 关 键 词： | RBAC 访问控制 时空权限 工作流 |
| 文章编号： | 1005-3026（2006）02-0217-04 |
| 收稿时间： | 2005-04-21 |
| 修稿时间： | 2005年4月21日 |
Temporarily-Spatially Constrained Workflow Authorization Model(TSCWAM) Based on RBAC |
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| XU Hong-xue,GUO Xiu-ying,LIU Yong-xian.Temporarily-Spatially Constrained Workflow Authorization Model(TSCWAM) Based on RBAC[J].Journal of Northeastern University(Natural Science),2006,27(2):217-220. |
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| Authors: | XU Hong-xue GUO Xiu-ying LIU Yong-xian |
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| Institution: | (1) School of Mechanical Engineering and Automation, Northeastern University, Shenyang 110004, China; (2) Yingkou Higher Vocational Technical Institute, Yingkou 115000, China |
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| Abstract: | A temporarily-spatially constrained workflow authorization model(TSCWAM) based on RBAC was proposed.Differing from the conventional access control authorization models based on subject-object pattern,the model offers a notion of temporal-spatial permission that the workflow authorization based on RBAC is constrained not only temporarily but also spatially,i.e.,the authorized user is just permitted to operate a certain task within a certain time and space.Thus,the tasks which form a workflow can only be performed by a user who is assigned to play a special role in operation,and the user can make sure that the authorized flow is coordinated mutually with the spatially dynamic change on the basis of synchronization of both authorized flow and workflow. |
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| Keywords: | RBAC(role-based access control) access control temporal-spatial permission workflow |
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