Abstract:Access control models usually consider only regular policies and are not appropriate to unusual or exceptional circumstances.For instance,in case of emergencies many users might override the access co...Access control models usually consider only regular policies and are not appropriate to unusual or exceptional circumstances.For instance,in case of emergencies many users might override the access control system in order to access unauthorized sensitive data which is undesirable. In this paper we introduce a model named Thresholdbased Collaborative Access Control (T-CAC). T-CAC specify weights toward permissions.Furthermore,every permission is associated to thresholds.Thresholds determine the required weight submitted by a user to gain the requested permission.This might require collaboration with several users who belong to several roles. T-CAC allow us to better design policies that fit situations,such as emergencies and exceptions,based on possible collaborations.Read More
Publication Year: 2009
Publication Date: 2009-01-01
Language: en
Type: article
Access and Citation
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