介绍了基于角色的访问控制模型和基于任务的访问控制模型的原理。
This paper introduces the theory of access control model based on role and task, and analyzes task and the shortage of above models.
基于任务的访问控制模型是一种以任务为中心，并采用动态授权的主动安全模型。
Task based Access Control Model is task centered and offers dynamic authorization , so it belongs to the active security model.
提出了一个数字证书营运中的基于任务的访问控制模型，解决了数字证书营运中的安全问题。
In this paper, we develop a task-based access control model for the service of certificate to solve those secure-problems.
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