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Decentralized storage method and system supporting data dynamic and public integrity auditing

A decentralization and data dynamic technology, applied in the direction of digital transmission system, transmission system, user identity/authority verification, etc., can solve user data security threats, not suitable for big data scenarios, large computing overhead and other problems, and achieve reduction Effects of user overhead, maintenance cost saving, and download speed improvement

Pending Publication Date: 2022-05-13
XIDIAN UNIV
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Problems solved by technology

Computational overhead is also one of the issues that should be considered. Some schemes perform integrity checks by comparing decrypted plaintext. The computational overhead is very high and is not suitable for large data scenarios.
At the same time, the existing decentralized storage solutions have not designed a malicious verification scheme for malicious auditors, which poses a great threat to the security of user data

Method used

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  • Decentralized storage method and system supporting data dynamic and public integrity auditing
  • Decentralized storage method and system supporting data dynamic and public integrity auditing
  • Decentralized storage method and system supporting data dynamic and public integrity auditing

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Embodiment Construction

[0061] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0062] Aiming at the problems existing in the prior art, the present invention provides a decentralized storage method and system that supports data dynamics and public integrity auditing. The present invention will be described in detail below in conjunction with the accompanying drawings.

[0063] Such as figure 1 As shown, the decentralized storage method for supporting data dynamics and open integrity auditing provided by the present invention includes the following steps:

[0064] S101: Initialize public and private parameters according to the Setup protocol, and assist the client to complete data preprocessing;

[0...

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Abstract

The invention belongs to the technical field of decentralized storage security, and discloses a decentralized storage method and system supporting data dynamic and public integrity auditing, and the method comprises the steps: initializing user public and private parameters according to a Setup protocol, and carrying out the preprocessing of user data according to an erasure code; processing the data by the client according to a Put protocol, generating a verification tag, and uploading the data and the verification tag to a plurality of decentralized servers; when a user wants to download data, a Get protocol is triggered; when a user wants to verify the integrity of outsourcing data, triggering a Challenge protocol and a Verify protocol; and when the user wants to update the outsourcing data, triggering the Dynamics protocol. According to the method, a user or a third party is supported to perform integrity auditing on user data, malicious verification between the third party and the server side is effectively prevented by utilizing the block chain in the verification stage, and the verification efficiency is improved; and a user is supported to carry out block-level dynamic updating operation on the data.

Description

technical field [0001] The invention belongs to the technical field of decentralized storage security, and in particular relates to a decentralized storage method and system supporting data dynamics and open integrity audit. Background technique [0002] At present, with the continuous innovation and breakthrough of Internet information technology, especially the emergence and development of artificial intelligence and cloud computing technology, the amount of data has exploded, and data outsourcing has gradually become the trend of information storage. Data outsourcing can provide clients with cheap and convenient services such as data storage, access and seamless synchronization on different devices, and has become an indispensable part of people's daily life. Due to its fast download speed and high security, decentralized storage The advantages of low cost have attracted extensive attention from academia and industry. In recent years, researchers have invested a lot of e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/20H04L9/08H04L9/32H04L9/40H04L67/06H04L67/1097H04L69/24
CPCH04L9/0656H04L9/0866H04L9/3297H04L9/3247H04L9/3236H04L67/06H04L67/1097H04L63/0442H04L63/123H04L69/24H04L2209/72
Inventor 姜涛刘岩黄一凡成琼黄创明于洪懿
Owner XIDIAN UNIV
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