Towards an authorization system for cloud infrastructure providers

Jorge Bernal Bernabe, Juan M. Marín Pérez, Jose M. Alcaraz Calero, Félix J. García Clemente, Gregorio Martínez Pérez, Antonio F. Gomez Skarmeta

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)


The provision of security services is a key enabler in cloud computing architectures. Focusing on multitenancy authorization systems, the provision of different models including role based access control (RBAC), hierarchical RBAC (hRBAC), conditional RBAC (cRBAC) and hierarchical objects (HO) is the main objective of this paper. Our proposal is based on the Common Information Model (CIM) and Semantic Web technologies, which have been demonstrated as valid tools for describing authorization models. As the same language is being used for the information and the authorization models they are both well aligned and thus reducing the potential mismatch that may appear between the semantics of both models. A trust model enabling the establishment of coalitions and federations across tenants is also an objective being covered as part of the research being presented in this paper.
Original languageEnglish
Title of host publicationProceedings of the International Conference on Security and Cryptography
Place of PublicationPiscataway, NJ
Number of pages6
ISBN (Electronic)9789898425713
Publication statusPublished - 18 Jul 2011
Externally publishedYes


  • Authorization system
  • Cloud computing
  • Multi-tenancy
  • Trust model
  • Semantic web


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