Control of a Motor Vehicle
AssigneeBayerische Motoren Werke Aktiengesellschaft
InventorsSven Hofmann, Josef WAGENHUBER
Life of this patent
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Abstract
A motor vehicle stores a first one-way hash of a password and an encrypted value from a second one-way hash of the password. A method for authenticating a device with respect to the vehicle includes the following: a PACE procedure is carried out so that the device and the motor vehicle determine the same session key; the motor vehicle generates a communication key on the basis of the session key and the encrypted one-way hash; and the device generates the communication key based on the session key and the second one-way hash.
Claims10
-9. (canceled)
A method for authenticating an appliance to a motor vehicle, wherein the motor vehicle stores a first one-way hash of a password, and an encrypted value from a second one-way hash of the password, the method comprising:
- performing a PACE method in order for the appliance and the motor vehicle to determine a same session key;
- generating, by the motor vehicle, a communication key based on the session key and the encrypted value;
- and
- generating, by the appliance, the communication key based on the session key and the second one-way hash.
A device on board a motor vehicle, wherein the device is configured to:
- store a first one-way hash of a password and an encrypted value from a second one-way hash of the password;
- perform a PACE method with an appliance in order to determine a session key;
- generate a communication key based on the session key and the encrypted value;
- and
- conduct communication with the appliance that is encrypted based on the communication key.
An appliance that is configured to:
- perform a PACE method with a device on board a motor vehicle in order to determine a session key;
- and
- determine a communication key based on the session key and a one-way hash of a password used for the PACE method.
Dependencies are inferred from the claim text.