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Data encryption method and device, storage medium and electronic equipment

A technology of data encryption and encryption algorithm, applied in the field of cryptography, which can solve the problems of writing speed, network device bandwidth speed mismatch, slowing down the overall performance of the application system, etc.

Active Publication Date: 2020-08-11
BEIJING INSTITUTE OF TECHNOLOGYGY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The operation of the SM4 encryption algorithm does not match the increasing writing speed of information system storage devices, bandwidth speed of network devices, etc.
Part of the existing SM4 encryption algorithm forms a performance bottleneck, slowing down the overall performance of the application system

Method used

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  • Data encryption method and device, storage medium and electronic equipment
  • Data encryption method and device, storage medium and electronic equipment
  • Data encryption method and device, storage medium and electronic equipment

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Embodiment Construction

[0030] The present application will be further introduced below in conjunction with the accompanying drawings and embodiments.

[0031] In the following introduction, the terms "first" and "second" are only used for the purpose of description, and should not be understood as indicating or implying relative importance. The following description provides multiple embodiments of the present invention, and different embodiments can be replaced or combined in combination, so this application can also be considered to include all possible combinations of the same and / or different embodiments described. Thus, if one embodiment contains features A, B, C, and another embodiment contains features B, D, then the application should also be considered to include all other possible combinations containing one or more of A, B, C, D Although this embodiment may not be clearly written in the following content.

[0032] The following description provides examples, and does not limit the scope,...

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Abstract

The invention provides a data encryption method and device, a storage medium and electronic equipment. The method comprises the steps: obtaining a round secret key of an S-Box of an SM4 encryption algorithm; carrying out the affine transformation on the round secret key of the S-Box of the SM4 encryption algorithm to generate a round secret key of the S-Box of an AES encryption algorithm; callingan AES-NI instruction, and executing encryption operation by utilizing the round secret key of the S-Box of the AES encryption algorithm to generate the S-Box of the AES encryption algorithm; and performing affine transformation reduction on the S-Box of the AES encryption algorithm to generate the S-Box of the SM4 encryption algorithm. Compared with a traditional SM4 algorithm, the method has theadvantages that the encryption operation speed is high, and then the overall performance of an application system is improved.

Description

technical field [0001] The present invention relates to the field of cryptography, in particular to a data encryption method, device, storage medium and electronic equipment. Background technique [0002] The SM4 algorithm is a block cipher algorithm announced by the National Commercial Encryption Management Office, and it is also the first commercial cipher algorithm officially announced in China. [0003] In the implementation process of the existing SM4 encryption algorithm, there will be problems of small data throughput and heavy CPU load. The operation of the SM4 encryption algorithm does not match the increasing writing speed of information system storage devices and the bandwidth speed of network devices. The existing SM4 encryption algorithm partially forms a performance bottleneck, slowing down the overall performance of the application system. Contents of the invention [0004] In order to solve the above-mentioned problems, the present invention utilizes the ...

Claims

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Application Information

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IPC IPC(8): H04L9/06
CPCH04L9/0618H04L9/0631
Inventor 马勇万春
Owner BEIJING INSTITUTE OF TECHNOLOGYGY