Securing Multimedia on Hybrid Architecture with Extended RBAC

Cloud computing has revolutionized the way computing and software services are delivered to the clients on demand. It offers users the ability to connect to computing resources and access IT managed services with a previously unknown level of ease. Due to this greater level of flexibility, the cloud has become the breeding ground of a new generation of products and services. However, the flexibility of cloudbased services comes with the risk of the security and privacy of users’ data. Thus, security concerns among users of the cloud have become a major barrier to the widespread growth of cloud computing. In this paper the authors proposed and implemented the architecture for cloud where the cloud data storage is divided into two sections. In first part only the organization's sensitive structure information is to be stored and in the second part of cloud the actual data needs to be stored. This implemented architecture not only will dispel the organization's concerns about risks of leaking sensitive structure information, but will also take full advantage of public cloud’s power to securely store large volume of data. Furthermore a cryptographic algorithm is to be employed with the use of two tier encryption. All data on public cloud is to be stored in encrypted form by employing cryptographic techniques which will save data from misuse and restrict data access to only those intended by the data owners. KeywordsCloud, Cryptography, algorithm, security, privacy, encryption.