Abstract
Despite the common use and the popularity of cloud computing paradigm, significant challenges are inherent to this concept, especially when we talk about storage of sensitive data via insecure internet network. In this paper, we look at the problem of protecting data from unauthorised access in the context of filing system. In today's information technology, many models of access control have been proposed like mandatory access control MAC, discretionary access control DAC, role-based access control RBAC and the latest one the UCONABC. The UCONABC is very suitable for the context of cloud computing but it does not give any implementation method. That is why we present in this paper the profile centric access control model, defined by the access profile which is the combination of authorisation, obligation and condition in order to resolve the implementation problem of UCONABC. The proposal is validated and implemented over Hadoop distributed file system.
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