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A CASA-Based Dynamic Access Control Scheme for Ubiquitous Environments

  • Journal of The Korea Society of Computer and Information
  • Abbr : JKSCI
  • 2008, 13(4), pp.205-212
  • Publisher : The Korean Society Of Computer And Information
  • Research Area : Engineering > Computer Science

김경자 1 장태무 2

1세종대학교
2동국대학교

Accredited

ABSTRACT

Conventional context-aware service models permit the access of resources only by user authentication, but the ubiquitous environments where the context information around users is changing frequently require the resource access control according to the rapid changes. This paper proposes a scheme to control access permission of resource dynamically as context information of user changes. Our access control model is based on traditional CASA (Context-Aware Security Architecture), but can restrict the access of the user already has been authorized. With the real-time checking of context information, our scheme gives different access controls according to changes in environmental information, and provides more secure services than conventional context-aware models.

Citation status

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