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Cloud storage revocable dynamic data integrity verification system and method

A technology of integrity verification and dynamic data, applied in digital data protection, electrical digital data processing, instruments, etc., can solve the problems of huge computing and storage overhead, loss, unrealistic, etc., and achieve the effect of efficient dynamic update

Pending Publication Date: 2019-07-12
广东优世联合控股集团股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the rise of cloud computing, users (Users) store data remotely in the cloud (CSP). However, the cloud is not completely trustworthy. The cloud may modify or delete the user's data, resulting in damage or loss of the user's data. This security The problem seriously restricts the development of cloud computing, which requires the use of data integrity verification technology to ensure the integrity of data, and the data stored in the cloud is massive, the traditional data integrity verification method needs to retrieve the data for verification, if directly Applying traditional data integrity verification solutions to the cloud will bring huge computing and storage costs, which is unrealistic. So how to efficiently verify data integrity remotely? The cloud storage data integrity verification scheme is a technology to solve such problems

Method used

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  • Cloud storage revocable dynamic data integrity verification system and method
  • Cloud storage revocable dynamic data integrity verification system and method
  • Cloud storage revocable dynamic data integrity verification system and method

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Embodiment Construction

[0032] In order to facilitate those of ordinary skill in the art to understand and implement the present invention, the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the implementation examples described here are only used to illustrate and explain the present invention, and are not intended to limit this invention.

[0033] please see figure 1 , figure 2 , a cloud storage revocable dynamic data integrity verification system provided by the present invention, users (Users), cloud service provider CSP (Cloud Service Provider) and third-party public auditor TPA (Third public auditor). CSP provides users with computing services and storage services, and can store users' files. Users can be enterprises or individuals. Enterprises and individuals need to store some data in CSP. Users do not want CSP to know the content of the data. Users need to ensure that the data stored i...

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Abstract

The invention discloses a cloud storage revocable dynamic data integrity verification system and method. A red and black tree information table and an erasure code caching technology are utilized to reduce the overhead of dynamically updating data, and a new signature technology is utilized to reduce the calculation overhead when the data block label is generated, so that the file preprocessing speed is higher, and meanwhile, the canceling of a verifier is also supported. The method is used for safe storage of the cloud storage system.

Description

technical field [0001] The invention belongs to the field of computer network security technology and cryptography technology, and relates to a cloud storage revocable dynamic data integrity verification system and method. Background technique [0002] With the rise of cloud computing, users (Users) store data remotely in the cloud (CSP). However, the cloud is not completely trustworthy. The cloud may modify or delete the user's data, resulting in damage or loss of the user's data. This security The problem seriously restricts the development of cloud computing, which requires the use of data integrity verification technology to ensure the integrity of data, and the data stored in the cloud is massive, the traditional data integrity verification method needs to retrieve the data for verification, if directly Applying traditional data integrity verification solutions to the cloud will bring huge computing and storage costs, which is unrealistic. So how to efficiently verify d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/64G06F21/60
CPCG06F21/645G06F21/602G06F2221/2103
Inventor 陈晶何琨杜瑞颖张瑞唐瑜
Owner 广东优世联合控股集团股份有限公司
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