ID-based control unit-key fob pairing
First Claim
1. A key fob, comprising:
- a transceiver to receive and send signals;
a memory to store a key fob identification (KFID); and
a processor coupled to said transceiver and memory to;
execute, along with a pairing device, an identification (ID) authenticated key agreement protocol based on the KFID to authenticate a pairing device and to generate a common secret encryption key known only by the processor and the pairing device;
receive, from the pairing device, a control unit identification (CUID) encrypted by the pairing device with the common secret encryption key;
execute along with the control unit associated with the CUID an ID authenticated key agreement protocol based on the CUID to authenticate the control unit and to generate a second common secret encryption key known only by the processor and the control unit; and
receive, from the control unit, an operation key encrypted by the control unit with the second common secret encryption key.
1 Assignment
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Accused Products
Abstract
A key fob includes a transceiver to send and receive signals, a memory to store a key fob identification (KFID), and a processor coupled to said transceiver and memory. The processor is to execute, along with a pairing device, an identification (ID) authenticated key agreement protocol based on the KFID to authenticate a pairing device and to generate a common secret encryption key known only by the processor and the pairing device. The Processor receives a control unit identification (CUID) encrypted by the pairing device with the common secret encryption key, execute along with the control unit associated with the CUID an ID authenticated key agreement protocol based on the CUID to authenticate the control unit, generates a second common secret encryption key known only by the processor and the control unit, and receives an operation key encrypted by the control unit with the second common secret encryption key.
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Citations
8 Claims
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1. A key fob, comprising:
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a transceiver to receive and send signals; a memory to store a key fob identification (KFID); and a processor coupled to said transceiver and memory to; execute, along with a pairing device, an identification (ID) authenticated key agreement protocol based on the KFID to authenticate a pairing device and to generate a common secret encryption key known only by the processor and the pairing device; receive, from the pairing device, a control unit identification (CUID) encrypted by the pairing device with the common secret encryption key; execute along with the control unit associated with the CUID an ID authenticated key agreement protocol based on the CUID to authenticate the control unit and to generate a second common secret encryption key known only by the processor and the control unit; and receive, from the control unit, an operation key encrypted by the control unit with the second common secret encryption key. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification