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A semantic aware access control model with real time constraints on history of accesses

Noorollahi Ravari, A ; Sharif University of Technology | 2008

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  1. Type of Document: Article
  2. DOI: 10.1109/IMCSIT.2008.4747338
  3. Publisher: 2008
  4. Abstract:
  5. With the advent of semantic technology, access control cannot be done in a safe way unless the access decision takes into account the semantic relationships among the entities in a semantic-aware environment. SBAC model considers this issue in its decision making process. However, time plays a crucial role in new computing environments which is not supported in the model. In this paper we introduce the Temporal Semantic Based Access Control model (TSBAC), as an extension of SBAC, which enhances the specification of user-defined authorization rules by constraining time interval and temporal expression over users' history of accesses. A formal semantics for temporal authorizations is provided and conflicting situations (due to the semantic relations of the SBAC model and a sub-interval relation between authorizations) are investigated and resolved in our proposed model. An architecture for the access control system based on the proposed model is presented, and finally, we discuss and evaluate TSBAC.©2008 IEEE
  6. Keywords:
  7. Access control models ; Access decision ; Authorization rules ; Aware environments ; Computing environments ; Decision making process ; Formal Semantics ; Real time constraints ; Semantic relations ; Semantic relationships ; Semantic technologies ; Sub-interval ; Temporal expressions ; Time interval ; Computer science ; Decision making ; Formal methods ; Information technology ; Security systems ; Semantics ; Access control
  8. Source: Proceedings of the International Multiconference on Computer Science and Information Technology, IMCSIT 2008, 20 October 2008 through 22 October 2008, Wisla ; Volume 3 , 2008 , Pages 827-836 ; 9788360810149 (ISBN); 9788360810149 (ISBN)
  9. URL: https://ieeexplore.ieee.org/document/4747338