Zhengtao Liu1, *, Yi Ying1, Yaqin Peng1, Jinyue Xia2
CMC-Computers, Materials & Continua, Vol.63, No.2, pp. 861-871, 2020, DOI:10.32604/cmc.2020.07142
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. More >
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