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Authors: Chunxiao Ye 1 ; Zhongfu Wu 1 and Yunqing Fu 2

Affiliations: 1 College of Computer Science, Chongqing University, China ; 2 College of Distance Education, Chongqing University, China

Abstract: In existing delegation models, delegation security entirely depends on delegators and security administrators, for delegation constraint in these models is only a prerequisite condition. This paper proposes an Attribute- Based-Delegation-Model (ABDM) with an extended delegation constraint consists of both delegation attribute expression (DAE) and delegation prerequisite condition (CR). In ABDM, A delegatee must satisfy delegation constraint (especially DAE) when assigned to a delegation role. With delegation constraint, a delegator can restrict the delegatee candidates more strictly. ABDM relieves delegators and security administrators of security management work in delegation. In ABDM, a delegator is not allowed to temporarily delegate his permissions to a person who does not satisfy the delegation constraint. To guarantee its flexibility and security, an extension of ABDM named ABDMX is proposed. In ABDMX, a delegator can delegate some high level permissions to low level delegate e candidates temporarily, but not permanently. (More)

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Paper citation in several formats:
Ye, C.; Wu, Z. and Fu, Y. (2005). An Attribute-Based-Delegation-Model and Its Extension. In Proceedings of the 3rd International Workshop on Security in Information Systems (ICEIS 2005) - WOSIS; ISBN 972-8865-25-2, SciTePress, pages 146-159. DOI: 10.5220/0002560401460159

@conference{wosis05,
author={Chunxiao Ye. and Zhongfu Wu. and Yunqing Fu.},
title={An Attribute-Based-Delegation-Model and Its Extension},
booktitle={Proceedings of the 3rd International Workshop on Security in Information Systems (ICEIS 2005) - WOSIS},
year={2005},
pages={146-159},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0002560401460159},
isbn={972-8865-25-2},
}

TY - CONF

JO - Proceedings of the 3rd International Workshop on Security in Information Systems (ICEIS 2005) - WOSIS
TI - An Attribute-Based-Delegation-Model and Its Extension
SN - 972-8865-25-2
AU - Ye, C.
AU - Wu, Z.
AU - Fu, Y.
PY - 2005
SP - 146
EP - 159
DO - 10.5220/0002560401460159
PB - SciTePress