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App. Res. of Comp. Accepted Paper
Vol. 42, 2025 No. 9

Software optimization and implementation of SM4 algorithm based on CUDA and bit slicing

Wu Jiangyu1a
He Peng1a,1b,2
1. a. School of Computer Science & Information Engineering, b. School of Cyber Science & Technology, Hubei University, Wuhan 430062, China
2. Engineering Technology Research Center for Education Informatization of Hubei Province, Wuhan 430062, China
DOI: 10.19734/j.issn.1001-3695.2024.12.0522

Abstract

SM4 algorithm as a national standard symmetric encryption algorithm in China, plays a crucial role in achieving high-quality and efficient data protection. Current optimizations of the SM4 algorithm mainly focus on bit-slicing and instruction set optimization. However, bit-slicing and instruction set optimization both involve frequent data interaction and a high dependency on underlying hardware, leading to varying levels of support across different architectures. To address the aforementioned issues, an improved bit-slicing optimization method for data orchestration has been proposed in data processing to enhance data transmission efficiency. Additionally, within the framework of the CUDA programming model, the SM4 algorithm is implemented for efficient parallel encryption using local GPUs. The experimental results indicate that after utilizing bit slicing, the speedup ratio (Ep) can reach 3.03 when processing plaintext of size 32KB. Compared to the general SM4 algorithm, the optimized SM4 algorithm achieves an encryption speed of 14648 Mbp/s, requiring 2.0 cycles/byte for encryption, resulting in a performance improvement of 40% to 215%. The proposed solution significantly enhances the encryption and decryption efficiency of the current SM4 algorithm through GPU parallel acceleration. With the improved bit-slicing optimization, it can also increase the speed for small data, while ensuring a good improvement in security.

Foundation Support

湖北省重大攻关项目(2023BAA018)
武汉市重点研发计划(2023010402010783)

Publish Information

DOI: 10.19734/j.issn.1001-3695.2024.12.0522
Publish at: Application Research of Computers Accepted Paper, Vol. 42, 2025 No. 9

Publish History

[2025-04-29] Accepted Paper

Cite This Article

吴江雨, 何鹏. 基于CUDA和比特切片的SM4算法软件优化和实现 [J]. 计算机应用研究, 2025, 42 (9). (2025-04-29). https://doi.org/10.19734/j.issn.1001-3695.2024.12.0522. (Wu Jiangyu, He Peng. Software optimization and implementation of SM4 algorithm based on CUDA and bit slicing [J]. Application Research of Computers, 2025, 42 (9). (2025-04-29). https://doi.org/10.19734/j.issn.1001-3695.2024.12.0522. )

About the Journal

  • Application Research of Computers Monthly Journal
  • Journal ID ISSN 1001-3695
    CN  51-1196/TP

Application Research of Computers, founded in 1984, is an academic journal of computing technology sponsored by Sichuan Institute of Computer Sciences under the Science and Technology Department of Sichuan Province.

Aiming at the urgently needed cutting-edge technology in this discipline, Application Research of Computers reflects the mainstream technology, hot technology and the latest development trend of computer application research at home and abroad in a timely manner. The main contents of the journal include high-level academic papers in this discipline, the latest scientific research results and major application results. The contents of the columns involve new theories of computer discipline, basic computer theory, algorithm theory research, algorithm design and analysis, blockchain technology, system software and software engineering technology, pattern recognition and artificial intelligence, architecture, advanced computing, parallel processing, database technology, computer network and communication technology, information security technology, computer image graphics and its latest hot application technology.

Application Research of Computers has many high-level readers and authors, and its readers are mainly senior and middle-level researchers and engineers engaged in the field of computer science, as well as teachers and students majoring in computer science and related majors in colleges and universities. Over the years, the total citation frequency and Web download rate of Application Research of Computers have been ranked among the top of similar academic journals in this discipline, and the academic papers published are highly popular among the readers for their novelty, academics, foresight, orientation and practicality.

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