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A data integrity audit protocol based on Hyperledger

A data integrity and ledger technology, applied in the field of information security, can solve problems such as single point of failure and performance bottlenecks, audit protocols cannot deal with third-party audit institutions and cloud service provider collusion issues, and achieve the goal of preventing collusion attacks Effect

Active Publication Date: 2022-05-17
东北大学秦皇岛分校
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AI Technical Summary

Problems solved by technology

[0003] The audit results of using a third-party audit agency are not necessarily correct, and the reasons are as follows: (1) The existing audit protocol cannot deal with the collusion between the third-party audit agency and the cloud service provider, so the third-party audit agency may interest in feeding false results to users
(2) Third-party audit institutions are often centralized, with single point of failure and performance bottlenecks. Therefore, third-party audit institutions may return audit results without completing the audit process for their own benefit

Method used

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  • A data integrity audit protocol based on Hyperledger
  • A data integrity audit protocol based on Hyperledger
  • A data integrity audit protocol based on Hyperledger

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Embodiment

[0036] Such as Figure 1 to Figure 2 As shown, the present invention uses the commitment technology for the first time to hide the identities of all parties and then reveal them, realizing the self-regulatory function. The present invention divides the audit task into two groups, one is the task group (LT) based on the tag, and the other is the task group (DT) based on the data, and the specific operation involves the storage stage and the audit stage:

[0037] Storage stage, in this stage, users generate their necessary parameters and then send them to CSP, which packs them into transactions to send to the blockchain, this stage is divided into two steps, sending and storing;

[0038] Sending step: the user divides the file F into n blocks, F={F i} i∈n , and then generate a random value u∈G 1 to calculate the label The labels of each block form a set Φ={φ i} i∈n , next, the user sends to CSP, where ID is the real identity of the user in the blockchain;

[0039] Stor...

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Abstract

The present invention relates to the technical field of information security, in particular to a data integrity audit protocol based on Hyperledger, which realizes data privacy protection during the data integrity audit process by using bilinear pairing technology, and uses Hyperledger Fabric This blockchain technology realizes the credible record of the interactive data of all parties during the data integrity audit process, thereby realizing the traceability function; by using the anonymity function that comes with Hyperledger Fabric, the data integrity audit process is realized. Privacy protection of the identities of all parties; through the use of commitment technology, the temporary concealment and final disclosure of the identities of third-party audit agencies and cloud service providers during the data integrity audit process is realized, and the self-regulatory function is realized; including the following stages: Registration phase, preparation phase, storage phase and audit phase.

Description

technical field [0001] The invention relates to the technical field of information security, in particular to a data integrity audit protocol based on a hyperledger. Background technique [0002] As we all know, with the development of big data, local storage is difficult to meet the storage needs of massive data, and people often rely on cloud storage service providers to store data. However, cloud storage service providers may cause damage to data due to natural disasters, network attacks, unexpected power outages, etc. Therefore, the integrity of data cannot be fully guaranteed. When users use incomplete data for scientific analysis and other behaviors, they will get wrong results and cause huge losses. In order to ensure the integrity of data stored in the cloud, scholars have proposed a data integrity audit protocol. Integrity verification of service provider data. At present, the most famous of such solutions is to use a third-party audit agency to audit the integrit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/40H04L67/104H04L67/51H04L9/30
CPCH04L63/123H04L63/0421H04L67/104H04L9/3073H04L63/1441H04L67/51H04L9/50
Inventor 史闻博张永欣宋帅钊万佳欣杨茜雯徐欣鲁宁
Owner 东北大学秦皇岛分校
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