Surveying Cloud Storage Correctness using TPA with BLS
Priyanka Dehariya, Shweta Shrivastava, Vineet Richaraya · 2015
Abstract — In cloud computing, data is moved to a remotely located cloud server. Cloud storage in which data is stored on remote servers and is accessed by the user. Even though there is a benefit in accessing the data from the remote servers there raises security problem. After moving the data to the cloud data owner thinks that the data is secured and safe. But this hope may fail sometime because the data on the cloud may be altered, deleted o may be corrupted.For this scheme the user must download the data each time to validate it. But this scheme is very inefficient for the large data files. Thus by enabling public auditability user can resort to a third-party-auditor (TPA) to check the integrity of the outsourced data. In this Paper we proposed a system which is based on Bi-linear pairing, which covers many recent proof of storage systems because existing system are based in HLA and HLA-based systems are not privacy preserving. Our main scheme is based on a specific BLS scheme SHA2 based solution. There we are going to present a new technique for the key generation scheme bases on bilinear pairing unlike BLS & it is assume to be proven best experimentally & to increase user experience. Also here we are using SHA2 in place of cryptography map to point hash function.