Patent ID: 11869295
Assignee: ASSA ABLOY AMERICAS RESIDENTIAL INC.
Field: Control (Instruments)
Classification: CPC G  H | IPC G  H

Claim 0:
1. A method of establishing secure communication with a mobile device at an electronic lock, the method comprising:
establishing a communication connection with a mobile device over a short-range wireless communication protocol;
performing at least a portion of a mutual authentication process in which the electronic lock is authenticated to the mobile device and the mobile device is authenticated to the electronic lock;
performing a key generation process with the mobile device to generate an encryption key and a decryption key at the electronic lock; and
performing encrypted communication with the mobile device using the generated encryption key and the decryption key, the encrypted communication occurring via an unbonded connection using the short-range wireless communication protocol,
wherein establishing the communication connection with the mobile device comprises performing a bonding process to form a bonded communication connection with the mobile device, the bonding process including exchanging a bonding key pair with the mobile device via the short-range wireless communication protocol;
the method further comprising: after performing the at least the portion of the mutual authentication process, tearing down the bonded communication connection with the mobile device; and
wherein the electronic lock does not store a long term key used as part of the bonding process for the encrypted communication via the unbonded connection.