Cloud storage
Dr.Manju K Mathai, Juby Mathew · 2024
Cloud storage has emerged as a widely adopted solution for organizations and individuals to store and manage their data efficiently and cost-effectively. The increasing reliance on cloud storage is due to its numerous advantages, including scalability, accessibility, data redundancy, and easy integration with other services. However, the growing use of cloud storage has also raised concerns related to data security, privacy, and compliance with industry regulations. To address these concerns and enhance trust in cloud storage systems, third-party public auditing has become an essential component of the cloud storage ecosystem. A public auditing mechanism allows the auditor to audit the integrity of data in the cloud with efficient user revocation. In the proposed system, a third-party auditor (TPA) is included to check the integrity of data. It can perform auditing without accessing all data from the cloud. The audit is performed by dividing a file into blocks of data and auditing each block. The proposed scheme also handles revocation of a user efficiently. If one user is revoked from a group, the signature is recalculated and the blocks that are signed by the revoked user are re-signed. A user can perform dynamic operations, and batch auditing is supported. The experimental results show that this auditing mechanism is highly efficient and secure.