Patent for Access Control Using Challenge-Response Authentication

ChangeBridge: Patent Apps - Networking (H04L)

Published September 6th, 2022

Detected March 26th, 2026

Summary

The USPTO has published a patent application detailing a method for enhanced access control using challenge-response authentication. The patent, filed by inventors from Tommy ARNGREN et al., describes a system involving an authorization server, an access control device, and a user's key to verify identity before granting property access.

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What changed

This document is a patent application (US20260087865A1) filed with the USPTO, detailing a novel method for access control. The core innovation lies in a challenge-response authentication mechanism managed by an authorization server. The system receives an indication of a user's intent to access a property, transmits a challenge to a user-associated device, receives a response, and uses this response to determine authorization before sending a final access message.

While this is a patent application and not a direct regulatory mandate, it signifies technological advancements in cybersecurity. Companies involved in developing or implementing access control systems, particularly those dealing with physical property access or sensitive digital resources, should be aware of this patented technology. Compliance officers in the technology and security sectors may wish to monitor patent filings for potential implications on future product development and intellectual property landscapes.

Source document (simplified)

← USPTO Patent Applications

METHODS FOR ENHANCED LEVEL IN SECURITY IN ACCESS CONTROL PERFORMED BY AN AUTHENTICATION SERVER, AN ACCESS CONTROL DEVICE AND A KEY RESPECTIVELY, USING CHALLENGE AND RESPONSE AND OPTIONALLY INVOLVING MULTIPLE DEVICES

Application US20260087865A1 Kind: A1 Mar 26, 2026

Inventors

Tommy ARNGREN, Patrik SALMELA, Peter ÖKVIST, Niklas LINDSKOG, Henrik NORMANN, Daniel BERGSTRÖM

Abstract

A method (800) for access control. The method includes receiving (s802), at an authorization server (106), an indication that the user (101) has used or intends to use a key (102) in an attempt to gain access to a property (112), wherein access to the property is controlled by an access controller (104). The method also includes, after receiving the indication, the authorization server transmitting (s804) a first challenge to a first device associated with the user. The method also includes the authorization server receiving (s806) from the first device a response to the first challenge. The method also includes using the response to the first challenge, the authorization server determining (s808) whether the user is authorized to access to the property. The method further includes the authorization server sending (s810) a message indicating whether or not the user is authorized to access the property.