Indistinguishability Obfuscation: A Key Enabler for Lightweight Provable Data Possession in Cloud Storage

Storage external outsourcing, with its emphasis on data from outside distribution, has been growing in popularity in recent years. A number of intriguing issues regarding security and privacy are raised by this development. The lack of responsibility from external storage of information suppliers is a major worry. In order to help consumers verify the availability and integrity of their outsourcing data on insecure storage devices, this paper provides a comprehensive analysis of two schemas/algorithms. The schemas that have been examined are Provable-Data-Possession (PDP) and Proof-of-Retrievability (POR, which stand for indications of accessibility. In order to reassure customers that their data is safe on untrusted data storages, both protocols use cryptography. Lightweight Cipher Policy Assisted Cloud Data Handler (LCPCDH) is a new model for managing highly secure, lightweight cloud storage. It is cross-validated with the traditional RSA based Cloud Storage Scheme (RSACSS) to assess its performance. A hybrid of RSA with a standard cloud storage solution is the only tried-and-true approach here. According to this new model, the public verifier and the cloud provider neither have access to the actual signatures that authenticate cloud data. However, there are still reliable methods for checking the legitimacy of cloud-based data. For certain unique cases, such as outsourcing electronic checks and contracts, it might be helpful. In order to safeguard the confidentiality of the authentication system and enable blockless confirmation, we have developed a new authenticator named LCPCDH. In this paper, we build the first remote information ownership verification system for cloud storage using privacy-preserving authenticators, based on LCPCDH. Our suggested approach is tested through theoretical analysis and simulated tests to ensure its security and efficiency. The outcomes validate the safety and efficacy of our suggested paradigm.