Cloud auditing and authentication scheme for establishing privacy preservation

Data outsourcing to cloud servers is increased with the development of cloud storage. While increasing the amount of cloud storage, it leads to data duplication. But the unique copy of the original data is stored in the cloud server, and it causes data loss in terms of corruption or missing. It is essential to maintain the duplicate copy of the file and integrity auditing in the field of academic and industrial. The file over the cloud is maintained in a secure or protected manner. This paper proposes cloud auditing with secure file maintenance to retain the duplicate copy of the encrypted file. During the process of public auditing, integrity is maintained for each copy with reduced storage. Secure Authentication with User Anonymity (SAUS) is established with cloud auditing and confidentiality during the process of duplication, and auditing integrity is maintained with encryption approaches. The duplication process is invoked with Multi-Failure Resilient Replication (MRR) procedure in which the data loss is reduced. In order to deal with the multiple auditing strategy for outsourced data, data integrity is maintained with each data owner and delegating third party auditing (TPA) independently. The proposed work is implemented in MATLAB environment with better security and improved performance. The performance of the proposed work is compared with the existing approaches, which shows a better trade-off in contrast to prevailing approaches.