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国密算法和国际密码算法在车载单片机上应用的对比研究

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文章介绍了车载网络安全和密码学应用的研究现状,结合前人的研究分析了国密SM4、SM3、SM2算法和对应国际密码算法的差异。在可编程的硬件加密模块上进行实验,从软件执行时间、运行内存占用等方面对比了国密算法和国际密码算法的性能。结果表明,国密SM系列算法和对应国际密码算法占用大小相当的运行内存,任何一种国密算法和对应的国际密码算法在软件执行速度方面都存在差异,但算法执行时间的差别最大不超过31%。文章研究可为基于国密算法的车载和车联网安全通信提供基础,也可为开发国密算法的硬件加密模块提供参考。

This paper introduces the research status of in-vehicle cybersecurity and cryptography applications, and analyzes the differences between the Chinese cryptographic algorithms-SM4, SM3, SM2 and corresponding international cryptographic algorithms based on previous study. Experiments are carried out on the programmable hardware encryption module. The performance of the Chinese cryptographic algorithms and corresponding international cryptographic algorithms is compared in terms of software execution time and running memory occupation. There is a difference in software execution speed between any Chinese cryptographic algorithm and its corresponding international algorithm, but the speed difference is no more than 31%. This paper provides a basis for in-vehicle or Internet of vehicles secure communication based on Chinese cryptographic algorithms, and can also provide reference for developing hardware encryption module of Chinese cryptographic algorithms.

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