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Hyperledger-based data integrity auditing protocol

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 agencies and cloud service providers collusion problems, and achieve the goal of preventing collusion attacks Effect

Active Publication Date: 2021-08-27
东北大学秦皇岛分校
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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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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 invention relates to the technical field of information safety, in particular to a hyperledger-based data integrity auditing protocol, which realizes data privacy protection in a data integrity auditing process by using a bilinear pairing technology. According to the method, trusted recording of interaction data of all parties in a data integrity auditing process is realized by utilizing a block chain technology of Hyperledger Fabric, so that a traceable function is realized; the privacy protection of the identity of each party in the data integrity auditing process is realized by utilizing the anonymous function of the Hyperledger Fabric; temporary hiding and final disclosure of identities of a third-party auditing mechanism and a cloud service provider in a data integrity auditing process are realized by utilizing a commitment technology, and a self-supervision function is realized; The data integrity auditing protocol comprises the following stages: a registration stage, a preparation stage, a storage stage and an auditing stage.

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 Applications(China)
IPC IPC(8): H04L29/06H04L29/08H04L9/30
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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