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A system and method for implementing an SM4 cryptographic algorithm in a pipelined manner

A cryptographic algorithm and pipeline technology, applied in the field of information security, can solve problems such as slow encryption/decryption speed, large consumption of logic units, and long processing time

Inactive Publication Date: 2019-02-01
TIANJIN JINHANG COMP TECH RES INST
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Problems solved by technology

[0007] The present invention proposes a system and method for implementing the SM4 cryptographic algorithm in a pipeline manner, so as to solve how to overcome the problem of using simple logic circuits in the FPGA hardware gate circuit to realize the SM4 cryptographic algorithm, which consumes many logical units, takes a long time to process, and is slow in encryption / decryption speed. technical issues

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  • A system and method for implementing an SM4 cryptographic algorithm in a pipelined manner
  • A system and method for implementing an SM4 cryptographic algorithm in a pipelined manner
  • A system and method for implementing an SM4 cryptographic algorithm in a pipelined manner

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Embodiment Construction

[0079] In order to make the purpose, content and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0080] This embodiment proposes a system and method for implementing the SM4 encryption algorithm in a pipeline manner. The block diagram of the system and the implementation method of the pipeline are as follows: figure 1 shown.

[0081] The system includes input information memory, output information memory, encryption / decryption control signal register, round key generation control signal register, key register, start control signal register, synchronous clock generation module, double word sequence adjustment module, round key generation module and round data generation module.

[0082] Both the input information storage and the output information storage are 128-bit data storages for storing input data and output...

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Abstract

The invention belongs to the technical field of information security, in particular to a system and a method for realizing SM4 cipher algorithm by pipeline mode. The invention improves the speed of encryption / decryption, and can meet the application requirements of large amount of data and high real-time property of encryption / decryption. At the same time, by optimizing the wheel key generation module and the wheel data generation module, the consumption of logic unit in FPGA hardware gate circuit is reduced.

Description

technical field [0001] The invention belongs to the technical field of information security, and in particular relates to a system and a method for realizing the SM4 encryption algorithm in a pipeline manner. Background technique [0002] With the rapid development of computer network and communication technology, more and more attention has been paid to the issue of information security, and the issue of information security has been raised to the level of national development strategy by the Chinese government. For enterprises and technology developers, core data or core software developed are always facing a huge risk of being easily copied and stolen. Therefore, it is necessary to encrypt and protect core data or core software using secure cryptographic algorithms. [0003] The SM4 encryption algorithm was identified as the national encryption industry standard by the State Commercial Encryption Administration of China in 2012, and the standard number is GM / T0002-2012. ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/60H04L9/06
CPCG06F21/602H04L9/0618
Inventor 李宏耀
Owner TIANJIN JINHANG COMP TECH RES INST
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