Local authentication of communications device

A method of granting, by a validation device, an accessor device access to an operable device within a predetermined proximity of the validation device, the method comprising:

• receiving, via a transceiver communicably coupled with a processor and configured to communicate over a network with at least one accessor device and an access granting device that manages access of accessor devices to the operable device, reservation information from the access granting device, wherein the reservation information identifies one or more of the accessor devices as having permission to utilize the operable device, and wherein the operable device is within a predetermined proximity of the validation device;
• receiving, via the transceiver, a request from one of the accessor devices requesting permission to utilize the operable device, the request including an identifier of the requesting accessor device;
• validating, via the processor, the request in response to recognizing the identifier of the requesting accessor device based on the reservation information;
• granting to the requesting accessor device permission to allow the requesting accessor device to utilize the operable device sending, to the requesting accessor device via the transceiver, a signed message including permission expiration information;
• and
• upon an occurrence of an event associated with the permission expiration information, revoking the permission previously granted for the requesting accessor device to utilize the operable device.

At least one non-transitory computer-readable medium having computer program logic stored thereon, the computer program logic including instructions that, when executed by a processor of a validation device, cause the processor to:

• receive, via a transceiver communicably coupled with the processor and configured to communicate over a network with at least one accessor device and an access granting device that manages access of accessor devices to an operable device, reservation information from the access granting device, wherein the reservation information identifies one or more of the accessor devices as having permission to utilize the operable device, and wherein the operable device is within a predetermined proximity of the validation device;
• receive, via the transceiver, a request from one of the accessor devices requesting permission to utilize the operable device, the request including an identifier of the requesting accessor device;
• validate, via the processor, the request in response to recognizing the identifier of the requesting accessor device based on the reservation information;
• grant to the requesting accessor device permission to allow the requesting accessor device to utilize the operable device by sending, to the requesting accessor device via the transceiver, a signed message including permission expiration information;
• and
• upon an occurrence of an event associated with the permission expiration information, revoke the permission previously granted for the requesting accessor device to utilize the operable device.