Description

Cloud computing has been envisioned as the next generation architecture of the IT enterprise due to its long list of unprecedented advantages: on-demand self-service, ubiquitous network access, location-independent resource pooling, rapid resource elasticity, and usage-based pricing. A promising service platform for the Internet, this new data storage paradigm in “cloud” brings many challenging issues which have profound influence on the usability, reliability, scalability, security, and performance of the overall system. One of the biggest concerns with remote data storage is that of data integrity verification at untrusted servers. Cloud computing is a model for enabling ubiquitous network access to a shared pool of configurable computing resources. This system proposes A new cloud storage scheme OPoR for tackle the challenge of reduce the computational burden for the users. This is used to support dynamic data operations. Our motivation of this Project is proof of Retrievable for cloud storage, in which a trustworthy audit server is introduced to preprocess and upload the data on behalf of the clients. The cloud audit server also performs the data integrity verification or updating the outsourced data upon the clients’ request. New POR scheme Proven secure under a POR model with enhance security against attack in the upload phase.