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《计算机技术与发展》[ISSN:1006-6977/CN:61-1281/TN]

卷:

期数:

2025年10期

页码:

98-104

栏目:

网络空间安全

出版日期:

2025-10-10

文章信息/Info

Title:

Blockchain-based Decentralized Multi-replica Data Integrity Auditing

文章编号:

1673-629X(2025)10-0098-07

作者:

李伟程1; 刘宽2; 宁建廷2

1. 福建省特种设备检验研究院,福建福州 350008;

2. 福建师范大学 计算机与网络空间安全学院,福建福州 350117

Author(s):

LI Wei-cheng1; LIU Kuan2; NING Jian-ting2

1. Fujian Special Equipment Inspection and Research Institute,Fuzhou 350008,China;

2. School of Computer and Cyber Security,Fujian Normal University,Fuzhou 350117,China

关键词:

去中心化云存储服务; 数据完整性; 审计; 单点故障; 进化标签

Keywords:

decentralized cloud storage services; data integrity; audit; single-point failure; evolutionary tag

分类号:

TP309

DOI:

10.20165/j.cnki.ISSN1673-629X.2025.0129

摘要:

随着信息技术的快速发展,数据存储需求呈现爆炸式增长,传统的集中式存储模式难以满足高效、安全和灵活的存储需求。为此,越来越多的数据拥有者选择将数据加密后生成多个副本,并将其外包存储到多个远程云存储服务提供商,从而形成一种新型的去中心化云存储服务方式。这种方式不仅提高了数据的可用性,还使得数据存储更加灵活和可靠。在去中心化云存储环境中,数据完整性审计成为保障数据安全性和可靠性的核心问题,现有的大多数远程数据完整性审计方案通常依赖于第三方审计机构来完成。然而,这种模式存在单点故障的潜在风险,同时第三方审计机构的密钥托管机制也可能成为威胁系统安全的薄弱环节,尽管最近的一些研究提出使用区块链技术来辅助分布式存储网络中的审计工作,但链上开销仍然随着审计请求的增加呈较快线性增长趋势。为解决这些问题,该文通过采用基于进化标签的证明生成方法,提出了一种基于区块链的高效多副本数据完整性审计方案,适用于去中心化云存储环境。不仅有效缓解了传统模式中第三方审计机构的密钥托管问题,同时实现了常量级证明大小并显著降低了链上存储开销增长速度,从而提升了系统的安全性和运行效率。该方案凭借区块链技术的去中心化特性,以及进化标签的高效性,为去中心化云存储服务提供了一种可行的高效数据完整性审计解决方案。

Abstract:

With the rapid advancement of information technology,data storage demands have experienced explosive growth,making traditional centralized storage models increasingly inadequate in meeting requirements for efficiency, security, and flexibility.Consequently,an increasing number of data owners opt to encrypt data,generate multiple replicas,and outsource them to multiple remote cloud storage providers,forming a novel decentralized cloud storage paradigm. This approach not only enhances data availability but also improves storage flexibility and reliability. In decentralized cloud storage environments,data integrity auditing emerges as a critical challenge to ensure security and dependability. Most existing remote data integrity auditing schemes rely on third-party auditors,which introduces potential single-point failure risks and vulnerabilities through key escrow mechanisms. Although recent studies propose blockchain-assisted auditing in distributed storage networks,on-chain overhead still grows rapidly with increasing audit requests. To address these issues,we propose a blockchain-based efficient multi-replica data integrity auditing scheme for decentralized cloud storage environments by employing an evolutionary tag-based proof generation method. The scheme effectively mitigates the key escrow problem inherent in traditional third-party auditing models while achieving constant-sized proofs and significantly reducing the growth rate of on-chain storage overhead,thereby enhancing system security and operational efficiency. Leveraging blockchain’s decentralized nature and the efficiency of evolvable tags,this solution provides a practical approach to efficient data integrity auditing for decentralized cloud storage services.

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更新日期/Last Update: 2025-10-10