Privacy-Preserving Public Auditing For Regenerating-Code-Based Cloud Storage

Privacy-Preserving Public Auditing For Regenerating-Code-Based Cloud Storage

Abstract— Privacy-Preserving Public Auditing For Regenerating-Code-Based Cloud Storage. Data integrity maintenance is the major objective in cloud storage. It includes audition using TPA for unauthorized access. This work implements protecting the data and regeneration of data if someone mishandles it. This job will be assigned to a Proxy server. The data of the users will be stored in public and private area of the cloud. So that only public cloud data will be accessed by user and private cloud will remain more secured. Once any unauthorized modification is made, the original data in the private cloud will be retrieved by the Proxy server and will be returned to the user. Every data stored in the cloud will be generated with a Hash value using Merkle Hash Tree technique. So modification in content will make changes in the Hash value of the document as well. < Final Year Projects 2016 > Proxy also perform signature delegation work by generating private and public key for every user using OEAP Algorithm so that the security will be maintained. In our proposed we implement this scenario in a multi owner environment in which one document will be access by user groups. In this context, the access limit should be properly maintained so that no user for other group should be allowed to modify a particular group’s data. Also, if any modifications made in that data, it will be informed to the user as well by the proxy.