Enhanced data integrity and authenticity of dynamically stored data in cloud

Abstract

Cloud computing is emerging and widely used in this information technology era Cloud computing enables enormous storage facilities for various business enterprise and individual to manage data remotely stored in cloud servers and share the data among cloud users like universities social Media irrespective of their different geographic location The cloud storage manages the data stored without any local hardware and software maintenance. However there are high security risks when the user outsources the physical possession of the information like illicit data modification server crash malfunctioning server. For dependable storage in cloud servers the proposed works ensure the correctness of the data stored by using a malleable distributed storage for integrity check using auditing techniques The new design uses auditing technique which incorporates the homomorphic authenticators and erasure coding in a distributed manner with to preserve privacy from both the intruders from inside and outside Certain signatures techniques are implemented which works on dynamic data operation like append update delete The auditing is outsourced behalf of the user to Third Party Auditor TPA to verify the data integrity where the user is at ease The audit result which guarantees the correctness of the data stored by the users and fast error localizations are achieved simultaneously with privacy preserving The processing time energy and security is a challenge for cloud storage and retrieval time of data in and out from the server For securing an optimal solution an effective algorithm for storing and retrieving data is proposed Without having a direct access to the original file the data are verified along with the Meta data which secure from external threats newline