%0 Conference Paper %1 KML+06 %A Kagal, Lalana %A Montanari, Rebecca %A Lassila, Ora %A Toninelli, Alessandra %B Proc. of 5th International Semantic Web Conference, Athens, GA, USA, November 5-9, 2006, LNCS 4273 %D 2006 %K Semantic_Web collaborative security %T A Semantic Context-Aware Access Control Framework for Secure Collaborations in Pervasive Computing Environments %U http://www.google.com/url?sa=t&ct=res&cd=1&url=http%3A%2F%2Fpeople.csail.mit.edu%2Flkagal%2Fpapers%2Ftoninelli-CameraReadyFinal.pdf&ei=hAVSRbbECqeMxQLTkbCDCQ&usg=__67SQplcmUpukcVYnKeSHoED9E8s=&sig2=ZxePH4vzPj6TVjkl4zKytQ %X Wireless connectivity and widespread diffusion of portable devices offer novel opportunities for users to share resources anywhere and anytime and to form ad-hoc coalitions. Resource access control is crucial to leverage ad-hoc collaboration. In pervasive scenarios, however, collaborating entities cannot be known in advance and resource availability frequently vary, even unpredictably, due to user/device mobility, thus complicating resource access control. Access control policies cannot be defined based on entity's identities/roles, as in traditional access control solutions, and cannot be all specified a priori to face any operative run time situation, but require continuous adjustments to adapt to the current. To address these issues, this paper advocates the adoption of novel access control policy models that follow two main design guidelines: context-awareness to control resource access on the basis of context visibility and to enable dynamic adaptation of policies depending on context changes, and semantic technologies for context/policy specification to allow high-level description and reasoning reason about context and policies. The paper describes also the implementation of these concepts in a semantic context-aware policy model that adopts ontologies and rules to express context and context-aware access control policies and to allow policy adaptation. The schedule for this talk can be found in the conference programme and a linked list of all talks is provided in the article on ISWC2006 papers. This article has originally been created from the RDF metadata for ISWC 2006.

@inproceedings{KML+06, abstract = {Wireless connectivity and widespread diffusion of portable devices offer novel opportunities for users to share resources anywhere and anytime and to form ad-hoc coalitions. Resource access control is crucial to leverage ad-hoc collaboration. In pervasive scenarios, however, collaborating entities cannot be known in advance and resource availability frequently vary, even unpredictably, due to user/device mobility, thus complicating resource access control. Access control policies cannot be defined based on entity's identities/roles, as in traditional access control solutions, and cannot be all specified a priori to face any operative run time situation, but require continuous adjustments to adapt to the current. To address these issues, this paper advocates the adoption of novel access control policy models that follow two main design guidelines: context-awareness to control resource access on the basis of context visibility and to enable dynamic adaptation of policies depending on context changes, and semantic technologies for context/policy specification to allow high-level description and reasoning reason about context and policies. The paper describes also the implementation of these concepts in a semantic context-aware policy model that adopts ontologies and rules to express context and context-aware access control policies and to allow policy adaptation. The schedule for this talk can be found in the conference programme and a linked list of all talks is provided in the article on ISWC2006 papers. This article has originally been created from the RDF metadata for ISWC 2006. }, added-at = {2006-11-08T20:15:48.000+0100}, author = {Kagal, Lalana and Montanari, Rebecca and Lassila, Ora and Toninelli, Alessandra}, biburl = {https://www.bibsonomy.org/bibtex/257c1ffdf1ea4274ac4e348fe92411707/lysander07}, booktitle = {Proc. of 5th International Semantic Web Conference, Athens, GA, USA, November 5-9, 2006, LNCS 4273}, interhash = {efd8c59c34f3b5e508fbe0c8692fae49}, intrahash = {57c1ffdf1ea4274ac4e348fe92411707}, keywords = {Semantic_Web collaborative security}, timestamp = {2009-06-02T11:03:13.000+0200}, title = {A Semantic Context-Aware Access Control Framework for Secure Collaborations in Pervasive Computing Environments}, url = {http://www.google.com/url?sa=t&ct=res&cd=1&url=http%3A%2F%2Fpeople.csail.mit.edu%2Flkagal%2Fpapers%2Ftoninelli-CameraReadyFinal.pdf&ei=hAVSRbbECqeMxQLTkbCDCQ&usg=__67SQplcmUpukcVYnKeSHoED9E8s=&sig2=ZxePH4vzPj6TVjkl4zKytQ}, year = 2006 }