A Hybrid Attribute based RBAC Model

Abstract

In an open and distributed network, role-based access control (RBAC)

A Novel access control model in cloud computing environment (PAR-AC)

“…According to it, no user gets too much authority; otherwise the system will become risky. PAR-AC is having all basic features of cloud based access control methods as AC3 [27] and HA-RAC [7]. It stores Auditing log.…”

“…This feature has not been implemented by HA-RAC. PAR-AC also removes the loopholes of previous methods [7] [27],of not storing backups. Since heavy data can be accessed by the user and this makes the system slower; if the back up for all data is stored.…”

“…It is a common belief that the trust in today's cloud application is not sufficient [6]. Choosing a proper access control method is a vast research topic due to enormous development in distributed network [7]. The number of users is not limited in cloud environment; there can be cases of multiple accesses of same data by multiple users.…”

“…This results in low efficiency. It does not provide flexible access control policy [7]. Some of the works has also been done on ABAC alone in clouds [20] [21] [22], [23] and [24].…”

“…Hence, in that case one can merge role based access control with ABAC approach. Further, A hybrid approach is proposed, which combine ABAC with RBAC with defined hierarchy [7]. But this model does not solve the problem of back up of data.…”