基于分布式存储的高效双压缩数据完整性验证方案

By employing the EDCMA scheme and combining a dual compression method of data and a multinomial commitment protocol, a dual-compression data authenticator was designed and a zero-knowledge proof protocol was used to solve the problems of efficiency and security in data integrity verification in decentralized storage networks, thus achieving low-cost data integrity verification.

CN116938539BActive Publication Date: 2026-07-17BEIJING UNIV OF TECH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING UNIV OF TECH
Filing Date
2023-07-06
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In decentralized storage networks, existing technologies struggle to efficiently verify data integrity, especially compression methods which introduce computational burdens and potential cheating risks, while storage nodes incur significant additional storage and computational costs.

Method used

We adopted the blockchain-based high-efficiency dual compression auditing scheme EDCOMA, combined with a dual compression method of data and multinomial commitment protocol, designed a dual compression data authenticator, and used a zero-knowledge proof protocol to verify the compression process, and used smart contracts to verify data integrity.

Benefits of technology

It effectively reduces storage and computing costs, improves verification performance, ensures the correctness of compression results and data integrity, and reduces the burden of off-chain/on-chain verification.

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Abstract

本发明公开了基于分布式存储的高效双压缩数据完整性验证方案。流程如下:首先,数据所有者将数据分块后进行双重压缩,第一次压缩是通过将数据块分组哈希,第二次压缩是将压缩后的数据块转变为多项式。然后数据所有者将压缩后的数据块上传到分布式存储节点中,同时上传数据认证器和审计状态。当验证者要验证分布式存储节点的存储状态时,验证者发送随机挑战给分布式存储节点用于检查存储状态。分布式存储节点根据发送的挑战内容计算相应的证明,并将证明发送给验证者。验证者根据已有参数进行验证确认数据的完整性与安全性。此外,为了进一步提升安全性,本发明实现了链上审计,主要是将验证者替换为了区块链上的智能合约。
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