DLδε-OrBAC: Context based Access Control

Narhimene Boustia; Aicha Mokhtari

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Paper

DLδε-OrBAC: Context based Access Control

In Proceedings of the 7th International Workshop on Security in Information Systems - Volume 0ICEIS, 111-118, 2009 , Milan, Italy

Authors: Narhimene Boustia ¹ and Aicha Mokhtari ²

Affiliations: ¹ Saad Dahlab University, Algeria ; ² USTHB University, Algeria

Abstract: The final objective of an access control model is to provide a framework to decide if an action performed by subjects on objects is permitted or not. It is not convenient to directly specify an access control policy using concepts of subjects, objects and actions. In OrBAC (Organization Based Access Control), we can not only express static authorizations but also dynamic authorizations, depending on context. Formally, OrBAC is described in first order logic, where the context is one of the argument of predicate. We propose a new formalism based on description logic with defaults and exceptions (F. Coupey and C. Fouqueré) to describe and reason on OrBAC model. This paper is an enrichment of a previous work (N. Boustia and A. Mokhtari) with the introducing of an exception operator (?). This formalism covers not only concepts of information systems like users, objects, subjects and roles but also the context by the add of two operators of default (d) and exception (?). Notice that time complexity is still polynomial (F.M. Donini et al.). (More)

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Paper citation in several formats:

Boustia, N. and Mokhtari, A. (2009). DLδε-OrBAC: Context based Access Control. In Proceedings of the 7th International Workshop on Security in Information Systems (ICEIS 2009) - WOSIS; ISBN 978-989-8111-91-3, SciTePress, pages 111-118. DOI: 10.5220/0002175801110118

@conference{wosis09,
author={Narhimene Boustia. and Aicha Mokhtari.},
title={DLδε-OrBAC: Context based Access Control},
booktitle={Proceedings of the 7th International Workshop on Security in Information Systems (ICEIS 2009) - WOSIS},
year={2009},
pages={111-118},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0002175801110118},
isbn={978-989-8111-91-3},
}

TY - CONF

JO - Proceedings of the 7th International Workshop on Security in Information Systems (ICEIS 2009) - WOSIS
TI - DLδε-OrBAC: Context based Access Control
SN - 978-989-8111-91-3
AU - Boustia, N.
AU - Mokhtari, A.
PY - 2009
SP - 111
EP - 118
DO - 10.5220/0002175801110118
PB - SciTePress