基于国密算法SM4的车载PEPS和EMS安全认证方法研究
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1.安徽师范大学计算机与信息学院、芜湖职业技术学院;2.安徽师范大学;3.埃泰克汽车电子芜湖有限公司

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国家自然科学基金项目(面上项目,重点项目,重大项目)


Research on Methods of Vehicle PEPS And EMS Security Certification Based on the algorithm SM4
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1.School of Computer and Information,Anhui Normal Universit;2.institute of Information Engineering Wuhu Institute of Technology;3.School of Computer and Information,Anhui Normal University;4.Atech Automotive ( Wuhu ) Co.Ltd.

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    摘要:

    随着ICV(智能网联汽车)产业的快速发展,车与人、车与车以及车与外部环境的数据交换成为常态,汽车安全受到严重威胁,研究汽车安全认证方法则显得至关重要。车载PEPS(无钥匙进入及启动系统)和EMS(发动机管理系统)的安全认证决定整车安全性能,是保证汽车安全运行的前提条件。目前业界广泛采用128bits AES算法实现PEPS和EMS的安全认证,由于AES密钥生成和密钥调度算法较国密算法SM4复杂,加解密时间较长,且算法实现的代码量较大,占用过多的MCU资源。因此,提出将国密SM4算法应用于车载PEPS和EMS的安全认证,缩短加解密时间,有效提高数传效率,同时采用高级语言实现该算法并移植到国产MCU GD32F103,实现产品国产化,降低成本。将国密算法SM4进行推广,为ICV安全认证提供研究基础。

    Abstract:

    With the rapid development of ICV(Intelligent Connected Vehicle) industry, data exchange between vehicle and human, vehicle and vehicle as well as between vehicle and external environment has become nor mal, automobile safety has been seriously threatened, and it is very important to study automobile safety certification. Safety certification of vehicle-mounted PEPS (Passive Entry Passive Start) and EMS (Engine Management System) determines the safety performance of the vehicle, which is the prerequisite to ensure the safe operation of the vehicle. At present, 128bits AES algorithm is widely used in the industry to realize the security certification of PEPS and EMS. Because the AES key generation and key scheduling algorithm is more complex than the national encryption algorithm SM4, the encryption and decryption time is longer, and the amount of code implemented by the algorithm is larger, which takes up too much MCU resources. Therefore, it is proposed to apply the national secret SM4 algorithm to the safety certification of on-board PEPS and EMS, shorten the encryption and decryption time, and effectively improve the efficiency of data transmission. At the same time, the high level language is used to implement the algorithm and transplanted to the domestic MCU GD32F103 to realize localization of the product and reduce the cost. The state secret algorithm SM4 is extended to provide a research basis for ICV security certification.

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  • 收稿日期:2022-01-24
  • 最后修改日期:2022-03-26
  • 录用日期:2022-03-28
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