International Journal of Computational Intelligence Systems

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Volume 9, Issue 1, January 2016, Pages 1 - 9

A Novel Role-based Access Control Model in Cloud Environments

Authors
Received 19 June 2015, Accepted 30 October 2015, Available Online 1 January 2016.
DOI
10.1080/18756891.2016.1144149How to use a DOI?
Keywords
Access control; Cloud; Security; Availability; Trust; Bayesian
Abstract

In Cloud environments, the relationship between resources and users is more ad hoc and dynamic. The role-based access control (RBAC) model is an appropriate access control model for Cloud environments. When using the RBAC model in Cloud environments, some new elements should be considered. This paper proposes a SAT-RBAC model (security and availability based trust relationship in RBAC) and adopts the following elements as the main factors of a trust relationship: the security state and network availability of the host used by a user, the protection state of the service providers that are related to the role. A security-based scheduling model for Cloud environments is presented. Because of the uncertainty of Cloud environments, the trust relationship is divided into three zones: the unbelievable zone, the probable believable zone and the believable zone. Bayesian method is used to estimate the trust probability distribution in the probable believable zone. This paper also provides algorithms to evaluate the values of the main elements of a trust relationship. Finally, the experiments in simulated Cloud environment based on CloudSim in PlanetLab are discussed and the results prove that the SAT-RBAC model is effective in filtering abnormal behaviors in Cloud environments.

Copyright
© 2016. the authors. Co-published by Atlantis Press and Taylor & Francis
Open Access
This is an open access article under the CC BY-NC license (http://creativecommons.org/licences/by-nc/4.0/).

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Next Article In Issue>
Journal
International Journal of Computational Intelligence Systems
Volume-Issue
9 - 1
Pages
1 - 9
Publication Date
2016/01/01
ISSN (Online)
1875-6883
ISSN (Print)
1875-6891
DOI
10.1080/18756891.2016.1144149How to use a DOI?
Copyright
© 2016. the authors. Co-published by Atlantis Press and Taylor & Francis
Open Access
This is an open access article under the CC BY-NC license (http://creativecommons.org/licences/by-nc/4.0/).

Cite this article

risenwbib
TY  - JOUR
AU  - Jun Luo
AU  - Hongjun Wang
AU  - Xun Gong
AU  - Tianrui Li
PY  - 2016
DA  - 2016/01/01
TI  - A Novel Role-based Access Control Model in Cloud Environments
JO  - International Journal of Computational Intelligence Systems
SP  - 1
EP  - 9
VL  - 9
IS  - 1
SN  - 1875-6883
UR  - https://doi.org/10.1080/18756891.2016.1144149
DO  - 10.1080/18756891.2016.1144149
ID  - Luo2016
ER  -