Role-based fine-grained delegation constraint framework in collaborative environments

Show other versions (1)

A role-based delegation constraint method was introduced by separating role into two parts for fine-grained controlling. Three types of delegation constraints were analyzed, including temporal, prohibition and obligation. Using these constraints, conditional delegation and constrained usage was desc...

Full description

Bibliographic Details
Published in:Tongxin xuebao
Main Authors: LIU Wei1, CAI Jia-yong1, HE Ye-ping1
Format: Article
Language:Chinese
Published: Editorial Department of Journal on Communications 2008-01-01
Subjects:
computer software
collaboration
delegation constraint
role-based delegation model
conflict
Online Access:http://www.joconline.com.cn/zh/article/74655567/
Description
Summary:A role-based delegation constraint method was introduced by separating role into two parts for fine-grained controlling. Three types of delegation constraints were analyzed, including temporal, prohibition and obligation. Using these constraints, conditional delegation and constrained usage was described. The former protected accepted delegation under certain conditions against diffuseness and abuse. The later constrained the usage of permission to avoid abuses of delegated permissions. An algorithm based on the graph theory for verifying the consistency of delegation constraints was presented, which had the time complexity of O（n2）.
ISSN:1000-436X

Similar Items