Trustworthy Healthcare Cloud Storage Auditing Scheme (TCSHAS) with Blockchain-based Incentive Mechanism

Abstract

Abstract In this paper, we present the Trustworthy Healthcare Cloud Storage Auditing Scheme (TCSHAS) to address the trust issues associated with third-party auditors (TPAs) in traditional healthcare cloud storage audit schemes. Leveraging the non-tamperability and traceability features of blockchain technology, we propose a novel incentive mechanism that promotes honest and reliable behaviors among TPAs. Our approach involves organizing TPAs as a group of blockchain nodes that engage in mutual surveillance, ensuring the maintenance of a reputable group by inspecting and punishing malicious behaviors severely. We provide a comprehensive system model for the TCSHAS, which incorporates smart contracts to handle transactions-related matters, including dispute resolution. Through performance evaluations, we demonstrate that our scheme offers acceptable efficiency and is well-suited for real-world healthcare applications. By utilizing blockchain technology and a robust incentive mechanism, the TCSHAS enhances trust and security in healthcare cloud storage auditing, providing a foundation for reliable and accountable management of sensitive healthcare data.