The invention provides a vehicle anti-theft key matching method and device and a storage medium. The method applied to the controller comprises the steps that a first encryption result and a second encryption result are received from a diagnostic instrument, the first encryption result is obtained by encrypting a new secret key through an initial secret key by the diagnostic instrument, and the second encryption result is obtained by encrypting a transformation result of the new secret key through the initial secret key by the diagnostic instrument; decrypting the first encryption result and the second encryption result by using the initial key to obtain a first decryption result and a second decryption result; comparing the inverse transformation result of the first decryption result with the inverse transformation result of the second decryption result, and determining whether the inverse transformation result of the first decryption result is consistent with the inverse transformation result of the second decryption result; if yes, the first decryption result is stored as an anti-theft key of the controller, and a positive response is sent to the diagnostic instrument; if not, the first decryption result is not stored, and a negative response is sent to the diagnostic instrument. According to the invention, the key can be prevented from being snooped or tampered in the transmission process.

    提供了一种车辆防盗密钥匹配方法、装置和存储介质。应用于控制器的方法包括:从诊断仪接收第一加密结果和第二加密结果,其中,第一加密结果是由诊断仪利用初始密钥对新密钥进行加密而获得的,第二加密结果是由诊断仪利用初始密钥对新密钥的变换结果进行加密而获得的;利用初始密钥对第一和第二加密结果进行解密,获得第一和第二解密结果;将第一解密结果与第二解密结果的逆变换结果进行比较,确定第一解密结果与第二解密结果的逆变换结果是否一致;如果一致,则存储第一解密结果作为控制器的防盗密钥,向诊断仪发送正响应;如果不一致,则不存储第一解密结果,向诊断仪发送负响应。本发明可以保证密钥在传输过程中不被窥探或篡改。


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    Title :

    Vehicle anti-theft key matching method and device and storage medium


    Additional title:

    车辆防盗密钥匹配方法、装置和存储介质


    Contributors:
    ZHANG DINGYU (author) / WANG DI (author)

    Publication date :

    2023-07-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION , Übertragung digitaler Information, z.B. Telegrafieverkehr / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



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