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Security storage method and device based on RS erasure code

A technology of secure storage and erasure codes, applied in the field of computer storage and security, can solve the problems of being eavesdropped, peeping at user data, storage server disks and other hardware theft, etc., and achieve the effect of high security

Active Publication Date: 2016-02-17
SUNING COM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But for privacy, it faces various types of threats, such as: when data is uploaded to or downloaded from the cloud storage system, it is eavesdropped on the network; malicious administrators peep and copy users on the cloud space Data; illegal access to user data by other users or hackers invading the system; hardware such as storage servers or disks are stolen, or user data is leaked due to misuse or negligence of cloud service providers

Method used

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  • Security storage method and device based on RS erasure code
  • Security storage method and device based on RS erasure code
  • Security storage method and device based on RS erasure code

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Embodiment Construction

[0051] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0052] In the prior art, when decoding and reading a file, all data fragments need to be obtained, and the original file or data can be recovered only through decoding, which significantly reduces storage costs and operation and maintenance costs. However, the present invention executes file fragmentation on the client side, wherein one piece of fragmentation is stored locally as a decryption key, and the remaining m-1 file fragments are stored in cloud storage, and the amount of data that needs to be preserved on the client side is seldom , only the original 1 / m, and the multi-level encoding method needs to save less data, so it is especially suitable for smart phones and mobile terminals to use the cloud upload function....

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Abstract

The invention provides a security storage method and device based on an RS erasure code on a mobile terminal, belonging to the technical field of storage and security of computers. The method comprises the following steps: S1, while coding at a local client side, selecting a first file and / or data as a decryption key according to a coded file and / or data, storing the decryption key locally, and updating a second file and / or data in the coded file and / or data to a cloud storage space to store; and S2, obtaining inverse matrix data relative to a first generation matrix in metadata information of a locally stored file by adopting a Vandermonde matrix or a Cauchy matrix. According to the technical scheme provided by the invention, due to use of the RS erasure code, original data information cannot be obtained by decoding when user data are uploaded, stored and downloaded, even if the data are intercepted and stolen; and thus, the privacy of users can be ensured.

Description

technical field [0001] The invention relates to the technical field of computer storage and security, in particular to a secure storage method and device based on RS erasure codes. Background technique [0002] The rapid development of IT technology has led to a sharp increase in the amount of global data, which has driven the rapid development of the entire storage market, making cloud storage technology being applied on a large scale. Cloud storage refers to a system that integrates a large number of different types of storage devices in the network through application software to work together through functions such as cluster applications, grid technology, or distributed file systems, and jointly provide data storage and business access functions to the outside world. . In a cloud computing environment, files are generally stored in pieces in multiple storage servers, and damage to individual storage nodes or disks will not affect data integrity. [0003] In recent yea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08H04L1/00
Inventor 孙崎詹天文
Owner SUNING COM CO LTD
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