Research Article
Towards Trust-aware Access Management for Ad-hoc Collaborations
@INPROCEEDINGS{10.1109/COLCOM.2007.4553807, author={Jing Jin and Gail-Joon Ahn and Mohamed Shehab and Hongxin Hu}, title={Towards Trust-aware Access Management for Ad-hoc Collaborations}, proceedings={2nd International ICST Workshop on Trusted Collaboration}, publisher={IEEE}, proceedings_a={TRUSTCOL}, year={2008}, month={6}, keywords={Access control Authorization Collaboration Diseases Environmental management Identity management systems Licenses Medical diagnostic imaging Prototypes Resource management}, doi={10.1109/COLCOM.2007.4553807} }- Jing Jin
Gail-Joon Ahn
Mohamed Shehab
Hongxin Hu
Year: 2008
Towards Trust-aware Access Management for Ad-hoc Collaborations
TRUSTCOL
IEEE
DOI: 10.1109/COLCOM.2007.4553807
Abstract
In an ad-hoc collaborative sharing environment, attribute-based access control provides a promising approach in defining authorization over shared resources based on users’ properties/attributes rather than their identities. While the user’s attributes are always asserted by different authorities in the form of credentials, these authorities may not be accepted by the resource owner with the same degree of trust. In this paper, we present a trust-aware role-based authorization framework, called RAMARS TM, to address both the access control and the trust management issues in such environment. Central to our approach is the dynamic role assignment based on a user’s attributes, and trust management, as a special constraint, is in place to make trust decisions on a user’s attributes. Required components and functions are identified and specified in our trust and access management policies. An architecture of prototype system implementation is also discussed.
