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Data de-clustering and disordering as well as recovering method based on three-dimensional space structure

A data and scrambling technology, applied in the direction of memory address/allocation/relocation, preventing unauthorized use of memory, etc., to ensure confidentiality, improve resistance, and improve confidentiality.

Inactive Publication Date: 2011-09-21
BEIJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

The traditional block method is simply to install the bit stream of the file into blocks, and then store them in the information system.

Method used

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  • Data de-clustering and disordering as well as recovering method based on three-dimensional space structure
  • Data de-clustering and disordering as well as recovering method based on three-dimensional space structure

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Embodiment Construction

[0044] The present invention is described in more detail below in conjunction with accompanying drawing example:

[0045] Algorithm of the present invention is characterized in that:

[0046] A method for splitting and scrambling data based on a three-dimensional space structure, characterized in that: cutting a file with a size of L bytes into blocks according to n bytes to form row data, and sequentially taking m row data according to the cut blocks to construct and disassemble Faceted m×n, forming the split planes; scramble the order of byte data in each split plane using the order of the given knight tour traversal path; construct a three-dimensional cube m×n×k by using k split planes after scrambling; Carry out block data extraction in the three-dimensional cube m×n×k, extract the bytes belonging to (i, j) coordinates on the k split surfaces, and form m×n block data; store the block data in Different storage nodes of a distributed system. In this way, data scrambling ...

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Abstract

The invention provides a data de-clustering and disordering as well as recovering method based on a three-dimensional space structure. The method comprises the following steps of: de-clustering data information into data blocks to be hidden in the three-dimensional space structure so as to improve the confidentiality of storing the data; distributing the data into the three-dimensional space according to the size and number of the de-clustered data blocks; meanwhile, disordering the byte data on each surface of the three-dimensional space by using a knight-tour path to unite the data disordering and de-clustering process in the data blocking process, thereby, improving the capability of resisting the attack from an information stealer for the storage system, effectively preventing the illegal user from accessing or stealing the stored data information, and improving the confidentiality of the data in a distributed storage system.

Description

technical field [0001] The invention relates to a safe data block and recovery algorithm used in a distributed storage system, which can scramble data during the data segmentation process of the distributed storage system and ensure the confidentiality of user data. Background technique [0002] As the degree of informatization in our country is getting higher and higher, enterprises and institutions are increasingly dependent on information data and information systems. At present, many information systems are distributed systems. Security poses a serious challenge. On the one hand, information needs to be encrypted. On the other hand, by storing information in blocks, the reading and writing speed of large files can be accelerated. In the information system, information system damage and business interruption caused by more and more disasters and threats may have serious consequences. [0003] The distributed storage system is a way to fight against data disasters. When s...

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Application Information

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IPC IPC(8): G06F12/14G06F12/06
Inventor 姚文斌陈钊盛宇伟
Owner BEIJING UNIV OF POSTS & TELECOMM
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