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High-speed random sampling encryption method for geological and geographic big data

A random sampling and encryption method technology, applied in geographic information database, structured data retrieval, special data processing applications, etc., can solve problems such as unsatisfied requirements for large data file transmission efficiency, achieve fast and efficient encryption, and ensure security , The effect of solving the problems of efficiency and safety

Active Publication Date: 2021-07-09
CHINA UNIV OF GEOSCIENCES (WUHAN)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Both technologies adopt the method of secondary encryption, which meets the security requirements of large data files, but does not meet the transmission efficiency requirements of large data files.

Method used

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  • High-speed random sampling encryption method for geological and geographic big data
  • High-speed random sampling encryption method for geological and geographic big data
  • High-speed random sampling encryption method for geological and geographic big data

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Embodiment Construction

[0032] In order to make the purpose, technical solution and advantages of the present invention clearer, the embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0033] A high-speed random sampling encryption method for geological and geographic big data, including the following:

[0034] S101: Acquire geological and geographical data files; the geological and geographical data files include pictures, tables and text formats.;

[0035] S102: Divide the file into data blocks of random size through the file random division module;

[0036] Step S102 is specifically:

[0037] S201: Set the basic block size l of the file through the file random segmentation module; l is used to determine the granularity of the block; preferably, it can be set according to the security level, for example, l can be: 32KB, 48KB, 64KB, ...; the more l The larger the value, the lower the security level;

[0038] S202: Randomly generate...

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Abstract

The invention provides a high-speed random sampling encryption method for geological and geographic big data. The method comprises the following steps: acquiring geological and geographic data files; segmenting a file into data blocks with random sizes through a file random segmentation module; carrying out random sampling on the data blocks through a reservoir sampling method to obtain data blocks in extraction; encrypting the extracted data blocks by adopting an AES (Advanced Encryption Standard) encryption method; encrypting the data blocks which are not extracted by adopting a ZUC stream cipher method; and storing the encrypted data block and the Hash value corresponding to the data block. The method has the beneficial effects that the security can be ensured, the fast and efficient encryption of the big data file can be realized, and the vacancy that the traditional data encryption technology in the current market is difficult to meet the requirements of the big data on the aspects of encryption speed, processing performance, security and the like is filled.

Description

technical field [0001] The invention relates to the field of random sampling and data encryption, in particular to a high-speed random sampling encryption method for geological and geographic big data. Background technique [0002] The rapid development of cloud computing, Internet of Things, 5G and other technologies has promoted the explosive growth of data. Big data brings convenience to people's production and life, but at the same time, its security and privacy protection issues are becoming increasingly prominent. The value of geological and geographic big data is mainly reflected in data mining, while malicious, excessive data mining and uncontrolled data abuse will lead to sensitive information leakage or privacy data theft. Therefore, it becomes especially important to encrypt big data. [0003] At present, some traditional encryption algorithms are affected by the algorithm design, and the encryption speed cannot be significantly improved; secondly, the performan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06G06F16/29
CPCH04L63/0435H04L63/0457G06F16/29
Inventor 宋军杨帆王增鹏徐衡
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)