Master Lock Company LLC

Yi Zhang

Nemanja Stefanovic

Nathan L Conrad

Scott Kalous

John Bartucci

Nathan Conrad

A system includes a server having a communication device and a processing circuit. The communication device is configured to facilitate communication with electronic devices. The processing circuit is configured to receive permission from a first user device for a guest user to access an electronic lock using a second user device, provide a notification to the second user device regarding a guest user profile, receive an activation command from the second user device based on the notification, generate the guest user profile for the guest user in response to receiving the permission and the activation command, and transmit the guest user profile to the second user device. The guest user profile is usable to allow the guest user to unlock the electronic lock.

Electronic lock system

Guest access for locking device

A method includes establishing communication between a first mobile device and a locking device via a first wireless transceiver of the first mobile device and a second wireless transceiver of the locking device; determining a location of at least one of the first mobile device or the locking device responsive to the communication; receiving, by a server, permission for the guest user to access the locking device using a second mobile device where the permission is provided from an external device prior to the second mobile device interacting with the locking device; generating, by the server, a guest user profile in response to receiving the permission where the guest user profile includes data usable to allow the guest user to lock or unlock the locking device; and transmitting, by the server, the guest user profile to the second mobile device.

A method includes receiving, by a server, a request to revoke the access rights of a user device to a lock; transmitting, by the server, a revocation command to the user device to remove an access credential from the user device; identifying, by the server, one or more trusted devices that have access rights to the lock in response to unsuccessfully transmitting the revocation command to the user device; transmitting, by the server, a key change command to the one or more trusted devices including an updated key to replace a key on the lock; transmitting, by a first one of the one or more trusted devices to encounter the lock, the key change command to the lock; and replacing, by the lock, the key with the updated key such that the user device is unable to access the lock using the access credential.

Revocation of access credentials for a disconnected locking device

Disclosed are methods, systems, and computer-readable media for wireless key management for authentication. Authentication includes transmitting a request to a locking device, transmitting a security challenge to the mobile device, and transmitting a response to the challenge and an encrypted user profile for the locking device. The response includes data generated with an access key that is stored by both the mobile device and the locking device, and the user profile is encrypted by a server using a secret key that is stored by the server and the locking device. Authentication further includes verifying the response to the challenge, where the response is verified using the access key, and validating additional data from the mobile device. An action of the locking device may be initiated as specified by the request.

Location tracking for locking device

Disclosed are methods, and devices for wireless key management for authentication. One method includes receiving a lock identifier from a locking device; determining that the lock identifier is associated with a user profile, wherein a user profile is authenticated and encrypted by a server using a lock key that is stored by the server and the locking device, and wherein the user profile comprises a user key; transmitting the user profile; decrypting the user profile using the lock key; transmitting a security code; generating an encrypted command comprising the security code and encrypted using the user key; transmitting the command; validating the command. Validating the command can include decrypting using the user key; determining whether the security code is valid; and authenticating using the user key; and initiating, in response to validating, an action of the locking device as specified by the command.

Wireless key management for authentication

Disclosed are methods, systems, and computer-readable media for tracking location of locking devices. One locking device includes a wireless transceiver, a memory, an electronically controllable locking mechanism, a processor, and a location determination circuit configured to determine a location of the electronic locking device. The processor is configured to receive one or more location data items indicating the location of the electronic locking device at one or more times, to store the one or more location data items in the memory, and to transmit the one or more location data items from the memory to a mobile device via the wireless transceiver.

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Oak Creek, WI, United States of America

Yi Zhang