Workflow-based authorization service in grid

Abstract

In a distributed environment, specific rights may be required while a task is controlled and processed. A user should delegate enough rights to a task for processing. Tasks cannot work correctly if delegated rights are insufficient, or security threats may occur if delegated rights are excessive. Restricted delegation is the step that delegates proper rights to a task, and that enables finegrained authorization in Grid. In this paper, we propose WAS architecture as the method for supporting restricted delegation and rights management. In contrast to traditional architecture, WAS architecture uses a workflow that describes the sequence of rights required for normal execution of a task. By using the workflow, WAS architecture is able to check whether the task exercises allowed rights. WAS architecture is implemented on Globus toolkit 2.0.

Approaches to the Creation of Behavioural Patterns of Information System Users

“…However, detection of abnormal activity using these protocols shows the results, which are not good enough. The topic is relevant, and there are several attempts to solve it [10] [11], but at this point sufficiently accurate detection of this type of attack has not been reached.…”