Cloud based Hybrid Model for Authorized Deduplication

ABSTRACT Cloud computing provides a more cost effective environment to outsource storage computation. Many enterprises need to store and operate huge amount of data. Cloud provides many features such as application server, web application but our focus is only on the data storage. How to manage such a huge data in cloud is a big issue. To make data management elastic in cloud computing de-duplication technique is used. Data de-duplication is a compression technique that improves storage efficiency by eliminating redundant data. In this approach we have proposed a de-duplication technique which is different from traditional de-duplication system. In this system, user’s privileges are also checked. Again in this model of file-level de-duplication we are applying algorithm that makes de-duplication more efficient. In this approach we also focus on the confidentiality of sensitive data in support of de-duplication. We are proposing a Hybrid cloud approach. In Hybrid cloud approach two cloud are maintained, public cloud and a private cloud. A private cloud is working as an interface between user and public cloud. Private cloud provides a set of private key to the user. We also presented several new de-duplication constructions supporting authorized duplicate check in hybrid cloud architecture.