Open Access

ARTICLE

A Temporal Multi-Tenant RBAC Model for Collaborative Cloud Services

by Zhengtao Liu, Yi Ying, Yaqin Peng, Jinyue Xia

1 School of Computer Science and Engineering, Sanjiang University, Nanjing, 210012, China.
2 International Business Machines Corporation, New York, USA.

* Corresponding Author: Zhengtao Liu. Email: .

Computers, Materials & Continua 2020, 63(2), 861-871. https://doi.org/10.32604/cmc.2020.07142

Received 02 May 2019; Accepted 23 May 2019; Issue published 01 May 2020

Abstract

Multi-tenant collaboration brings the challenge to access control in cloud computing environment. Based on the multi-tenant role-based access control (MTRBAC) model, a Temporal MT-RBAC (TMT-RBAC) model for collaborative cloud services is proposed. It adds the time constraint between trusted tenants, including usable role time constraint based on both calendar and interval time. Analysis shows that the new model strengthens the presentation ability of MT-RBAC model, achieves the finergrained access control, reduces the management costs and enhances the security of multitenant collaboration in cloud computing environment.

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Keywords

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