Audita: A Blockchain-based Auditing Framework for Off-chain Storage
Danilo Francati, Giuseppe Ateniese, Abdoulaye Faye, Andrea Maria, Milazzo, Angelo Massimo Perillo, Luca Schiatti, Giuseppe Giordano

TL;DR
Audita is a blockchain-based framework designed to enhance the security, transparency, and auditability of off-chain cloud storage, addressing privacy and scalability challenges with a flexible, tamper-evident solution.
Contribution
It introduces a novel blockchain-based auditing framework that ensures reliable, secure, and private off-chain data storage with tamper-evidence and scalability features.
Findings
Prototype built on Quorum blockchain platform
Provides tamper-evident auditability for off-chain data
Addresses scalability and privacy challenges in cloud storage
Abstract
The cloud changed the way we manage and store data. Today, cloud storage services offer clients an infrastructure that allows them a convenient source to store, replicate, and secure data online. However, with these new capabilities also come limitations, such as lack of transparency, limited decentralization, and challenges with privacy and security. And, as the need for more agile, private and secure data solutions continues to grow exponentially, rethinking the current structure of cloud storage is mission-critical for enterprises. By leveraging and building upon blockchain's unique attributes, including immutability, security to the data element level, distributed (no single point of failure), we have developed a solution prototype that allows data to be reliably stored while simultaneously being secured, with tamper-evident auditability, via blockchain. The result, Audita, is a…
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