Access Control to a Motor Vehicle
AssigneeBayerische Motoren Werke Aktiengesellschaft
InventorsMarco HIPPLER, Thorsten KNOTT, Lukas REINHART
Life of this patent
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Abstract
A digital key is provided for securing use of a motor vehicle. A public key of a receiver and a first secret is transmitted from the receiver to a key service. A key service compares first secret with a second secret previously received from a sender for the digital key. The result of the comparison is assigned to the public key by the key service. The public key and an attestation of the digital key is transmitted from the receiver to the key service. The key service determines that the public key last received from the receiver was assigned a positive comparison result. The attestation is transmitted from the key service to the motor vehicle.
Claims10
A method for providing a digital key that secures a use of a motor vehicle, comprising:
- transmitting a public key of a receiver and a first secret from the receiver to a key service;
- comparing, by the key service, the first secret with a second secret previously received from a sender for the digital key;
- assigning a result of the comparison to the public key by the key service;
- transmitting, from the receiver to the key service, the public key and an attestation of the digital key;
- determining, by the key service, that the public key last received from the receiver was assigned a positive comparison result;
- and
- transmitting the attestation from the key service to the motor vehicle.
A key service, comprising:
- a processing unit configured by instructions stored on a non-transitory computer readable medium to:
- receive, from a receiver, a public key of the receiver and a first secret;
- compare the first secret to a second secret previously received from a sender for a digital key;
- assign a result of the comparison to the public key;
- receive, from the receiver, the public key and an attestation of the digital key;
- determine that a positive comparison result was assigned to the public key last received from the receiver;
- and
- transmit the attestation from the key service to the motor vehicle.
Dependencies are inferred from the claim text.