Blockchain for access control

A mobile device for using a blockchain in an access control environment, the mobile device comprising:

• a processor;
• and
• a memory comprising a plurality of instructions stored thereon that, in response to execution by the processor, causes the mobile device to:
• transmit a request to access a passageway secured by a lock device to a first node device, wherein a plurality of node devices including the first node device store the blockchain;
• receive a lock-specific access token from one of the plurality of node devices in response to validation of a blockchain transaction associated with the request received from the mobile device by the plurality of node devices;
• transmit the lock-specific access token to the lock device;
• receive a verification message from the lock device in response to successful authentication of the lock-specific access token, wherein successful authentication is associated with a grant of access to the passageway;
• and
• transmit a notification of verification to the first node device to amend the blockchain.

A system for using a blockchain in an access control environment, the blockchain stored on a plurality of nodes devices including a first node device, the system comprising:

• a lock device configured to control access through a passageway and broadcast a wireless message including a lock identifier of the lock device;
• and
• a mobile device configured to (i) detect the wireless message broadcast by the lock device, (ii) transmit a request to access the passageway secured by the lock device to the first node device, the request comprising the lock identifier of the lock device and a mobile device identifier of the mobile device, (iii) receive a lock-specific access token from one of the plurality of node devices in response to validation of a blockchain transaction associated with the request received from the mobile device by the plurality of node devices, and (iv) transmit the lock-specific access token to the lock device;
• wherein the lock device is further configured to (i) authenticate the lock-specific access token, (ii) grant access through the passageway in response to successful authentication of the lock-specific access token, and (iii) transmit a verification message to the mobile device in response to successful authentication of the lock-specific token;
• and
• wherein the mobile device is further configured to transmit a notification of verification to the first node device to amend the blockchain in response to receipt of the verification message from the lock device.