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Akash veer, Charmy Turakhia, Deepali Ause, Piyush Gawali

The cloud computing can make storage outsourcing in which the data having in secure in search literature. Some investigates having problem of efficient and secure public data for shared dynamic data. These are still not secure against the complicity and leakage of cloud storage server from attacker and revoked group users during the user termination in cloud storage system. In this paper, inspecting the integrity of shared data with dynamic group in cloud. According to the paper a new user can added into the group existing group member can be revoked privacy using data backup which is based on the vector commitment and verifier –local revocation group signature. This supports the public validation and efficient user revocation. General Terms De-duplication, Asymmetric Group Key Agreement scheme (ASGKA), Vector commitment.