Patent ID: 11947649
Assignee: MASTER LOCK COMPANY LLC
Field: Control (Instruments)
Classification: CPC G  H | IPC G

Claim 0:
1. A lock system that performs a two factor authentication process, the lock system comprising:
an electronic locking device including:
an electronically controllable locking mechanism;
a first memory configured to store a first factor;
a wireless transceiver; and
a first processor configured to:
perform a first factor authentication step, which includes (a) acquiring a first factor input and (b) determining if the first factor input matches the first factor;
perform a second factor authentication step, which includes (a) acquiring an encrypted package via the wireless transceiver, (b) decrypting the encrypted package to retrieve a user key, (c) receiving an encrypted command via the wireless transceiver, and (d) decrypting the encrypted command using the user key to generate a decrypted command; and
perform an action associated with the decrypted command in response to (a) the first factor input matching the first factor and (b) successfully decrypting the encrypted command in the second factor authentication step;

a server including:
a second memory configured to store the user key corresponding to an authorized user of the electronic locking device;
a second processor configured to generate the encrypted package, wherein the encrypted package includes the user key; and
a communications interface configured to transfer the encrypted package and a copy of the user key appended to the encrypted package to a user device; and

a non-transitory computer-readable medium for the user device, the non-transitory computer-readable medium having computer-executable instructions encoded therein, the instructions when executed by a third processor of the user device cause the third processor to:
transmit the encrypted package to the electronic locking device;
generate the encrypted command using the user key; and
transmit the encrypted command to the electronic locking device.