ID-based control unit-key fob pairing
View Patent ↗A key fob-control unit pairing device that includes a transceiver to transmit and receive signals, a memory to store a key fob identification (KFID) and a control unit identification (CUID), and a processor coupled to said transceiver and memory. The processor is to authenticate the key fob using identification (ID) authenticated key agreement protocol based on the KFID, and to transmit an encrypted CUID to the key fob.
1. A key fob-control unit pairing device, comprising:
a transceiver to transmit and receive signals;
a memory to store a key fob identification (KFID) and a control unit identification (CUID); and
a processor coupled to said transceiver and memory to:
perform an identification (ID) authenticated key agreement protocol based on the KFID to generate a common secret encryption key shared between the key fob and the pairing device;
authenticate the key fob by generating an encrypted CUID using the common secret encryption key generated from the identification (ID) authenticated key agreement protocol; and
transmit the encrypted CUID to the key fob.
2. The device of claim 1 , wherein the ID authenticated key agreement protocol is based on elliptical curve cryptography.
3. The device of claim 1 , wherein the ID authenticated key agreement protocol is based on Diffie-Hellman key agreement protocols.
4. The device of claim 1 , wherein the KFID and the CUID are eight character hexadecimal words.
5. The device of claim 1 , wherein the KFID is used as a password for authentication.
6. The device of claim 1 , wherein the KFID is received by the processor via the transceiver from the key fob.