Nowadays, Cloud storage service is a faster profit growth point by providing a position-independent, low -cost platform, comparably scalable for client's data. The construction of cloud computing environment is based on interfaces and open architecture. It has cloud capable to include multiple internal and external cloud services together to provide high interoperability there can be multiple accounts associated with a single or multiple service providers. So, Security in terms of integrity is main and most important aspect in cloud computing environment. Cooperative Provable data possession (CPDP) is a method for integrity the ensuring of data in storage outsourcing. Therefore, we address the construction of an efficient dynamic audit service and CPDP scheme for distributed cloud storage as well verifying the integrity guarantee of an entrusted and outsourced storage which support the data migration and scalability of service.
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