TY - GEN
T1 - Towards trust-aware access management for ad-hoc collaborations
AU - Jin, Jing
AU - Ahn, Gail Joon
AU - Shehab, Mohamed
AU - Hu, Hongxin
PY - 2007
Y1 - 2007
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=51349106231&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=51349106231&partnerID=8YFLogxK
U2 - 10.1109/COLCOM.2007.4553807
DO - 10.1109/COLCOM.2007.4553807
M3 - Conference contribution
AN - SCOPUS:51349106231
SN - 1424413176
SN - 9781424413171
T3 - Proceedings of the 3rd International Conference on Collaborative Computing: Networking, Applications and Worksharing, CollaborateCom 2007
SP - 41
EP - 48
BT - Proceedings of the 3rd International Conference on Collaborative Computing
T2 - 3rd International Conference on Collaborative Computing: Networking, Applications and Worksharing, CollaborateCom 2007
Y2 - 12 November 2007 through 15 November 2007
ER -