A secure multi-owner multi-copy facility with privacy preserving on public storage cloud dynamic data

Abstract

Most of the organization produced huge sensitive data and uses expensive applications. Both of these are quite expensive due to requirements of high storage capacity and installing the same application on different computers. Cloud Service Providers (CSP’s) offered paid Storage-as-a-service (SaaS) and Platform-as-a-service (PaaS) services that enable to store large data and uses many applications by less amount. Sometimes organizations need to be replicated data on multiple servers for increasing levels of scalability, availability, and durability and need to verify the intactness and consistency of dynamic multiple data copies. Implemented system provides evidence that all data copies are actually stored and remain intact. Moreover, implemented system supports dynamic behavior on cloud data, where the data owners are capable of archiving, accessing, updating and scaling the data copies stored by CSP. In addition, the system allows owners to appoint third party verifier and used to identify corrupted copies and reconstructs them.