An MDA approach to secure access to data on cloud using implicit security

摘要

Cloud computing has been developed to deliver information technologies services on demand for organisations or as individual users. In this paper, we describe an approach which proposes a security model bases on organisation role-based access control (ORBAC) and encryption system. This model aims to give users a possibility to control security of their data. In this scheme, a secret key is partitioned using a Galois field GF(2~m).Our proposal has been aligned with model driven architecture (MDA).