Secure sensor arrangement
AssigneeInfineon Technologies AG
InventorsThomas LEUTGEB, Markus DIELACHER, Norbert DRUML, Armin KRIEG
Life of this patent
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Abstract
A sensor arrangement comprises a communication device and a sensor element. The sensor element is configured to record a property and provide a sensor signal that represents the property. The sensor arrangement comprises a security element configured to provide a secret. The sensor arrangement is configured to link the sensor signal to the secret to obtain a linked sensor signal, transmit the linked sensor signal to a communication partner using the communication device, obtain a test signal from the communication partner using the communication device, and perform a check to determine whether the test signal comprises the secret.
Claims21
A sensor arrangement, comprising:
- a communication device;
- a sensor element configured to:
- record a property;
- and
- provide a sensor signal that represents the property;
- and
- a security element configured to provide a secret, wherein the sensor arrangement is configured to:
- link the sensor signal to the secret to obtain a linked sensor signal;
- transmit the linked sensor signal to a communication partner using the communication device;
- obtain a test signal from the communication partner using the communication device;
- and
- perform a check to determine whether the test signal comprises the secret.
A sensor system, comprising:
- a sensor arrangement, comprising:
- a communication device;
- a sensor element configured to:
- record a property;
- and
- provide a sensor signal that represents the property;
- and
- a security element configured to provide a secret, wherein the sensor arrangement is configured to:
- link the sensor signal to the secret to obtain a linked sensor signal;
- transmit the linked sensor signal to a device, configured to use the linked sensor signal, using the communication device;
- obtain a test signal from the device using the communication device;
- and
- perform a check to determine whether the test signal comprises the secret;
- and
- the device, wherein:
- the device is connected to the sensor element by the communication device;
- and
- the device is configured to:
- obtain the linked sensor signal from the sensor arrangement;
- derive the test signal from the linked sensor signal;
- and
- transmit the test signal to the sensor arrangement.
A method, comprising:
- recording a property using a sensor element to obtain a sensor signal that represents the property;
- linking the sensor signal to a secret to obtain a linked sensor signal;
- transmitting the linked sensor signal to a communication partner;
- obtaining a test signal from the communication partner;
- and
- checking whether the test signal comprises the secret.
Dependencies are inferred from the claim text.