• Rajeswari P.V.N
• T. Sahithi

Objective: This paper is aimed to study sharing of resources on the cloud can be achieved on a large scale since it is cost effective and location independent. Methods/Statistical analysis: Despite of the advantages of cloud computing, organizations are still reluctant to deploy their businesses in the cloud computing environment due to concerns in secure resource sharing. In this paper, we propose a cloud resource mediation service offered by cloud service providers, which plays the role of trusted third party among its different tenants. This paper formally specifies the resource sharing mechanism between two different tenants in the presence of our proposed cloud resource mediation service. Findings: To evaluate the our proposed method in terms of security, effectiveness, and efficiency each algorithm was modeled, analyzed, and verified using HLPN, and the Z formal language was used to define transition rules. Finally, the properties of the algorithm were verified using the Z3 solver. The outcomes acquired in the wake of executing the solver exhibited that the asserted algorithm explicit access control properties were fulfilled and permits secure execution of privilege activation on the cloud through the CRMS. Applications/Improvements: we will include a comparative analysis of the proposed CTAC model with other state-of-the-art cross domain access control protocols using real-world evaluations.

Access Control, Revocation, Cloud Computing.

"A Multi-Tenant Access Control Scheme for Sharing Resources in Cloud Computing Environments", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 4, page no.300-307, April-2019, Available :http://www.jetir.org/papers/JETIR1904D40.pdf

"A Multi-Tenant Access Control Scheme for Sharing Resources in Cloud Computing Environments", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 4, page no. pp300-307, April-2019, Available at : http://www.jetir.org/papers/JETIR1904D40.pdf