A Data Integrity Verification Scheme for Centralized Database Using Smart Contract and Game Theory

Currently, many companies and institutions use centralized or distributed databases to store massive amounts of data. However, the untrusted third-party auditors can result in security issues because these may be malicious tamper with delete user This poses a significant challenge for ensuring reliability data verification results. Although introducing auditor help address this issue, it also untrustworthy collude database service provider forge false In study, we propose integrity scheme using smart contracts (DIV-SC) environment. Our approach utilizes blockchain technology as decentralized auditor, that information stored on is immutable cannot tampered maliciously. addition, deployed ensure procedures are correct not affected by any party. We leverage game theory improve multiple verifications, reduce time overall performance. proposed reduces total consumption up 53.44% while increasing number verifiable times nearly 3.8 times, compared conventional schemes.