Secure Authorized Deduplication for Hybrid Cloud Storage

Cloud computing provides number of applications, as utilities in the internet .This applications create, configure and customize accessing referring the cloud computing as online utility. Cloud computing offers online data storage, infrastructure, services over networks and applications. Cloud storage is an widely popular offering of cloud computing. Cloud storage is used for increasing the number of users, access the users data from anywhere and also space for data storage in computing. Data deduplication means a type of data compression. This data compression to reduce its storage requirement using encoding of data. Data deduplication method used for replacement of multiple copies of data or eliminating duplicate copies of data. It also reduce storage space and save bandwidth. Deduplication is having one of the advantage for new security and privacy challenges with high cost. Basically, data deduplication means of reducing storage space in cloud. In this paper certain improves the speed of data deduplication with encrypted data reduces the cloud storage capacity of data. This paper first to show that addressing the problem of secure authorized data deduplication. Data deduplication works by eliminating data and ensuring that only one unique instance of data. Hence,Data deduplication is also called as single instance storage, because of the differential privilege of users considered in duplicate check. In this paper we implement that deduplication with encrypted data using SHA and MD5 algorithm for hybrid cloud storage