Injecting Task Delegation Constraints into a Role-based Access Control Model
Identifieur interne : 002191 ( Main/Merge ); précédent : 002190; suivant : 002192Injecting Task Delegation Constraints into a Role-based Access Control Model
Auteurs : Khaled Gaaloul [France] ; Erik Proper [Luxembourg (pays)] ; François Charoy [France]Source :
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Abstract
In role-based access control models, delegation of authorityinvolves delegating roles that a user can assume or the set of permissions that he can acquire, to other users. Several role-based delegation models have been proposed in the literature. However, these models consider only delegation in presence of the role type, which have some inherent limitations to task delegation in workflow systems. In this paper, we address task delegation in a workflow and elaborate a security model supporting delegation constraints. Delegation constraints express security requirements with regards to task's resources, user's assignment and privileges (delegation of authority). Further, we show how, using a role-based security model, we inject formalised delegation constraints to compute delegation principals with their respective privileges.
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<orgName>Laboratoire Lorrain de Recherche en Informatique et ses Applications</orgName>
<orgName type="acronym">LORIA</orgName>
<date type="start">2012-01-01</date>
<desc><address><addrLine>Campus Scientifique BP 239 54506 Vandoeuvre-lès-Nancy Cedex</addrLine>
<country key="FR"></country>
</address>
<ref type="url">http://www.loria.fr</ref>
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<orgName>Université de Lorraine</orgName>
<orgName type="acronym">UL</orgName>
<date type="start">2012-01-01</date>
<desc><address><addrLine>34 cours Léopold - CS 25233 - 54052 Nancy cedex</addrLine>
<country key="FR"></country>
</address>
<ref type="url">http://www.univ-lorraine.fr/</ref>
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<idno type="ISNI">0000000122597504</idno>
<orgName>Centre National de la Recherche Scientifique</orgName>
<orgName type="acronym">CNRS</orgName>
<date type="start">1939-10-19</date>
<desc><address><country key="FR"></country>
</address>
<ref type="url">http://www.cnrs.fr/</ref>
</desc>
</org>
</tutelle>
</tutelles>
</hal:affiliation>
<country>France</country>
<placeName><settlement type="city">Nancy</settlement>
<settlement type="city">Metz</settlement>
<region type="region" nuts="2">Grand Est</region>
<region type="old region" nuts="2">Lorraine (région)</region>
</placeName>
<orgName type="university">Université de Lorraine</orgName>
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<profileDesc><textClass><keywords scheme="mix" xml:lang="en"><term>access control</term>
<term>security</term>
<term>workflow</term>
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<front><div type="abstract" xml:lang="en">In role-based access control models, delegation of authorityinvolves delegating roles that a user can assume or the set of permissions that he can acquire, to other users. Several role-based delegation models have been proposed in the literature. However, these models consider only delegation in presence of the role type, which have some inherent limitations to task delegation in workflow systems. In this paper, we address task delegation in a workflow and elaborate a security model supporting delegation constraints. Delegation constraints express security requirements with regards to task's resources, user's assignment and privileges (delegation of authority). Further, we show how, using a role-based security model, we inject formalised delegation constraints to compute delegation principals with their respective privileges.</div>
</front>
</TEI>
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