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A remote data integrity verification method for cloud storage

A technology of integrity verification and remote data, applied in the field of remote data integrity verification, it can solve the problems of information leakage, data leakage of data owners, and unsuitable for practical engineering applications.

Inactive Publication Date: 2016-05-25
HANGZHOU YUANTIAO TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in these schemes, it is still possible for an attacker to use the public verification protocol to collect enough information to crack the data and cause the data owner's data to leak
Therefore, these schemes have the risk of information leakage and are not suitable for practical engineering applications.

Method used

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  • A remote data integrity verification method for cloud storage
  • A remote data integrity verification method for cloud storage
  • A remote data integrity verification method for cloud storage

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Embodiment Construction

[0038] The technical solutions of the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. The following examples are implemented on the premise of the technical solutions of the present invention, and detailed implementation methods and processes are given, but the protection scope of the present invention is not limited to the following examples.

[0039] In order to better understand the method proposed in this embodiment, a user U in the cloud storage environment is selected to verify the data integrity of the files stored on the cloud storage server CSS.

[0040] As the method structural diagram of the present invention ( figure 1 ), the specific implementation steps of this embodiment are as follows:

[0041] 1 System initialization

[0042] The system runs the bilinear Diffie-Hellman (BilinearDiffie-Hellman, BDH) parameter generator to generate two bilinear groups G, G t , g is the generator of the...

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Abstract

The invention provides a remote data completeness verification method facing cloud storage. According to the method, the aggregate signature and specified certifier signature technology is utilized, the verification function on the user data completeness by users and the third party auditors is realized, and meanwhile, the information of users for data completeness is enabled not to be leaked; the verification information transparency control is realized through the zero knowledge proving technology, and when the dispute exists between the users and a server, the third party auditors can generate the undeniable high-confidence-degree proving through the non-interactive zero knowledge proving technology. According to the method, under the condition that a cloud storage service provider is incredible, the accuracy of the cloud data completeness verification can also be ensured, and the method provided by the invention has the advantages that the realization is easy, the cost is low, the data protection performance is high, the third party audit is supported, the privacy protection mechanism is flexible, and the like.

Description

technical field [0001] The invention relates to a cloud storage-oriented remote data integrity verification method, in particular to providing safe and efficient data in cloud storage, supporting public authentication, third-party A verification and an integrity verification method with privacy protection belong to the technical field of information security. Background technique [0002] The outsourcing of cloud computing data services can reduce the local storage and maintenance pressure of data owners. However, while cloud computing brings convenience to users, it also brings new security challenges to user data. As users lose physical control over data reliability and security, data integrity in cloud storage becomes one of the security issues that users worry about. Due to the huge communication cost caused by large-scale data, it is impossible for users to download the data locally and then verify its correctness. Therefore, how to ensure the security of data in clou...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F21/64H04L29/06
CPCG06F21/645G06F2221/2115H04L63/123
Inventor 夏莹杰夏伏彪刘雪娇王贵林
Owner HANGZHOU YUANTIAO TECH CO LTD
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