Cloud storage offers cost effective storage to the users dynamically. Corporate and private users upload their sensitive data items to the cloud storage. But mostly the data stored in the cloud storage is redundant. To avoid redundant storage of the data items and to minimize the maintenance overhead, data deduplication is the most widely used mechanism. Deduplication suffers from various security weaknesses. Considering the popularity of the data items we propose a mechanism to ensure the ownership of the data items in the cloud storage. In addition, we have leveraged the advantages of perfect hash functions and made use of a probabilistic data structure to ensure the ownership of the data items. The efficiency of this mechanism is analyzed considering the popularity of data and ensuring the ownership of data by the users and further provide a detailed performance evaluation.
Data de-duplication is the significant system used for removal the repetitive copy of information and broadly use in cloud storage to decrease and upload bandwidth. Our main motto be toward accomplish safe de-duplication within cloud. Convergent encryption has been utilized for safe de-duplication, complication is having colossal number of convergent keys. We will be utilizing base line approach in which each of the user have their own masterkey for encrypting their convergent keys also send them to cloud. This approach produces huge amount of keys with increment in amount of user and it needs help of user to look after master keys. At ending we will have De-key in which users need not deal with the key on their individual except steadily circulate convergent key among many servers.
<p>In proposed framework client source information reinforcements off-site to outsider distributed storage benefits to decrease information administration costs. In any case, client must get protection ensure for the outsourced information, which is currently safeguarded by outsiders. To accomplish such security objectives, FADE is based upon an arrangement of cryptographic key operations that are self-kept up by a majority of key supervisors that are free of outsider mists. In unmistakable, FADE goes about as an overlay framework that works flawlessly on today's distributed storage administrations. Actualize a proof-of-idea model of FADE on Amazon S3, one of today's distributed storage administrations. My work oversee, esteem included security highlights acclimatize were today's distributed storage administration. our research work proceeds in ensuring the file access control and assured deletion in multi cloud environment and reducing the meta data management, there by the cloud storage become more attractive and many users will adopt the cloud space in order to diminish the data storage cost.</p>
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