Efficient Integrity Checking and Secured Data Sharing in Cloud

"It is to protect data in a cloud server from third-party access". Most present systems suffer from a complex key managing issue since they depends on expensive public key infrastructure (PKI),it may make RDIC implementation challenging in practice. Remote data integrity checking (RDIC) in the proposed system allows a data storage server used to approve and a verifier which is accurately storing the data of the owner. Here we introduce a new identity-based RDIC protocol that uses key which is the same form of cryptographic primitives which are introduced to reduce the system performance, complex and expense of initiating and oversee public key authentication substructure which is in PKI-based Remote data integrity checking (RDIC) methods. The Identity based RDIC that is replica of hostage, which includes safety, are formalized opposed to a rogue cloud server, as well as providing a zero-knowledge required privacy from an identified third-party verifier.