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Enhanced Trust Based Access Control for Multi-Cloud Environment

N. R. Rejin Paul1,*, D. Paul Raj2
1 R M K College of Engineering and Technology, Puduvoyal, Gummidipoondi, 601206, India
2 R M D Engineering College, Kavaraipettai, Gummidipoondi, 601206, India
* Corresponding Author: N. R. Rejin Paul. Email:

Computers, Materials & Continua 2021, 69(3), 3079-3093. https://doi.org/10.32604/cmc.2021.018993

Received 28 March 2021; Accepted 29 April 2021; Issue published 24 August 2021

Abstract

Security is an essential part of the cloud environment. For ensuring the security of the data being communicated to and from the cloud server, a significant parameter called trust was introduced. Trust-based security played a vital role in ensuring that the communication between cloud users and service providers remained unadulterated and authentic. In most cloud-based data distribution environments, emphasis is placed on accepting trusted client users’ requests, but the cloud servers’ integrity is seldom verified. This paper designs a trust-based access control model based on user and server characteristics in a multi-cloud environment to address this issue. The proposed methodology consists of data encryption using Cyclic Shift Transposition Algorithm and trust-based access control method. In this trust-based access control mechanism framework, trust values are assigned to cloud users using direct trust degrees. The direct trust degree is estimated based on the following metrics: success and failure rate of interactions, service satisfaction index, and dishonesty level. In addition to this, trust values are assigned to cloud servers based on the metrics: server load, service rejection rate, and service access delay. The role-Based Access control policy of each user is modified based on his trust level. If the server fails to meet the minimum trust level, then another suitable server will be selected. The proposed system is found to outperform other existing systems in a multi-cloud environment.

Keywords

Cloud computing; trust; access control; cloud service provider; cloud data user; CSTA

Cite This Article

N. R. Rejin Paul and D. Paul Raj, "Enhanced trust based access control for multi-cloud environment," Computers, Materials & Continua, vol. 69, no.3, pp. 3079–3093, 2021.



This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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