Audit as You Go: A Smart Contract-Based Outsourced Data Integrity Auditing Scheme for Multiauditor Scenarios with One Person, One Vote

The data outsourcing services provided by cloud storage have greatly reduced the headache of management for users, but issue remote integrity poses further security concerns and computing burdens. introduction a third-party auditor (TPA) frees owners from auditing burden alleviates disputes over audit results between providers. However, malicious servers may collude with TPAs to deceive users financial profits. Hiring multiple auditors in single assignment appears be method address above problem, ensuing voting issues need explored. In this paper, we proposed smart contract-based outsourced scheme multiauditor scenarios. Unlike some existing schemes using reputation like factors as their weights, our vote equally they go, without any maintenance. This mechanism not only trivia related also avoids drawbacks centralization associated over-high weights. challenge used check is jointly generated each involved auditor. Any collusion would detected long there exists more than one honest audit. We implement deploy Ethereum contracts. With help blockchain, entire process public transparent. Both obtained are persisted immutability, which ensures traceability all historical audits. comprehensive theoretical experimental analyses demonstrate that meets claimed targets high efficiency low gas costs.