Preserving privacy using TPA for cloud storage based on regenerating code

Abstract

Cloud storage is getting popular as it offers flexible service with appealing benefits of on-demand data outsourcing. Putting away files remotely instead of locally boasts an array of preferences for both home and professional clients. In this paper we are trying to secure all kind of private data into cloud by providing some security levels which includes encryption, digital signature and visual cryptography. The utilization of visual cryptography is investigated to safeguard the privacy of a picture captcha. This picture captcha is broken down into two shares also known as sheets that are put away in separate database servers one with client and one with application such that the first picture captcha can be uncovered only when both shares are accessible. The individual sheet pictures do not uncover the character of the first picture captcha. When the original picture captcha is uncovered to the client it can be utilized as the secret word. In private auditing scheme for regenerated coded file there exist remote checking method, which include users to stay online, which is not practical. So to endeavor this, third party auditor (TPA) is used to resolve problem of clients for being online all the time.