基于区块链的云数据完整性审计方案  

Blockchain-based cloud data integrity auditing scheme

作　　者：高改梅[1] 高茂林 党伟超[1] 刘春霞[1] 白尚旺[1] GAO Gai-mei;GAO Mao-lin;DANG Wei-chao;LIU Chun-xia;BAI Shang-wang(Department of Computer Science and Technology,Taiyuan University of Science and Technology,Taiyuan 030024,China)

机构地区：[1]太原科技大学计算机科学与技术学院,山西太原030024

出　　处：《计算机工程与设计》2024年第8期2281-2289,共9页Computer Engineering and Design

基　　金：山西省应用基础研究基金项目(201901D111266);太原科技大学科研启动基金项目(20192062);太原科技大学研究生教育创新基金项目(XCX212079);太原科技大学研究生教学改革研究课题基金项目(JG2022010)。

摘　　要：针对云存储数据完整性审计效率低的问题,提出一种基于区块链的云数据完整性审计方案。以树结构保存证据信息,状态通道内完成审计“挑战-验证”,实现高效审计;通过局部置信率随机抽取数据块生成挑战,聚合数据物理性和逻辑性生成挑战对应验证证据,实现数据的逻辑性完整验证;智能合约将审计结果打包成交易并保存区块中,实现审计结果的可追踪性。实验结果表明,BCDIAS方案提供数据隐私保护,能抵御单体攻击,整体审计效率提升12.14%,对实际应用场景有一定参考价值。To enhance the efficiency of data integrity auditing for cloud storage,a blockchain based cloud data integrity auditing scheme was proposed.The evidence information was saved in a tree structure,and the audit challenge-verification was completed in the state channel to achieve efficient auditing.Through the local rate random extraction of data block generates challenge,aggregating data physical and logical generation challenge corresponding to verification evidence,the logical complete verification of data was achieved.The smart contract packaged audit results into transactions and they were saved in blocks to achieve traceabi-lity of audit results.Experimental results verify that the BCDIAS provides data privacy protection and it can resist individual attacks.The overall auditing efficiency is improved by 12.14%,and the BCDIAS has certain reference value for practical application scenarios.

关 键 词：区块链 云数据存储 完整性审计 状态通道 局部置信率 挑战-验证 去中心化 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]