Computer Securing Privacy by Using DSA Algorithms for Cloud Storage

Abstract

----Cloud computing is cyberspace based cloud computing that which enables sharing of services has many users place their data in to the cloud. But, the fact is that users can no longer have possession of the large size of deployable data that makes the data integrity protection in cloud computing a very challenging and potentially alarming task, especially for the users with limited computing resources and capabilities. So security and correctness of data are major concern. Security in cloud is achieved by signing the data block before sending to the cloud. By using the Storage in cloud, users can remotely store their data and enjoy the on-demand high quality applications and services from a shared pool of configurable resources, without the charge of local data storage and maintenance. However, the fact that users will no longer have possession of the data which makes the data integrity in cloud that is a major task, mainly for users with limited computing resources. Moreover, clients or customers should be able to use the cloud storage as if it is local or origin, without worrying about the need to integrity verification. Thus, providing public auditability for cloud storage is of major importance. So that users can resort to a third party auditor (TPA) to check the integrity of outsourced data and be worry-free. In this paper, we propose a secure cloud storage system supporting privacy-preserving public by using DSA algorithms. Here, we use the DSA algorithms to give the data which is secured, imposter prevention and authentication.