| 摘要 |
The present invention relates to a motor vehicle control device data transfer system and process. In particular, it relates to such a system and process for the transfer of data, subject to the risk of tampering, from a central data-processing device ( 12 ) at the motor vehicle manufacturer's to a motor vehicle data-processing device ( 5 ), such as an electronic drive engine control device, in which tamper-free data transfer is guaranteed. In this connection, an authentication enquiry value is generated by the vehicle data-processing device ( 5 ) and transferred to the central data-processing device ( 12 ) by means of a mobile data-processing device ( 9 ). This generates an authentication response value, which is transferred back by the same route with release data.
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