Mobile Device Access Control Using On-the-Spot Unique Identifiers
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional access control systems for restricted areas are inconvenient for users, costly to manufacture, and have security vulnerabilities due to the need for physical card keys and storage of security codes on readers, making them susceptible to hacking.
Innovation Solution
A secure short-distance-based communication and access control system using low-powered beacons, mobile devices, and zone computers that enable secure communication and validation without the need for physical card keys, employing unique identifiers generated on the fly for secure message exchange and minimizing cross-talk between devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional card key systems are used for access control, then access authorization can be validated, but users must carry additional physical cards and the system is susceptible to hacking
Solution Approach 1:
The patent replaces the mechanical card key system with a mobile device-based system using wireless communication protocols (Bluetooth, Wi-Fi, NFC). The mobile device acts as the access credential, eliminating the need for physical card keys while maintaining authorization validation through cryptographic protocols and unique identifier verification.
Solution Approach 2:
The patent creates a digital copy of the access control functionality by implementing a software-based validation system on mobile devices that replicates the card key's authorization capability. The mobile device contains cryptographic credentials and unique identifiers that serve as a digital equivalent to the physical card key, enabling wireless authentication.
2Reliability
If security codes are stored on readers for validation, then card keys can be verified, but the system becomes highly susceptible to hacking and creates security vulnerabilities
Solution Approach 1:
The patent inverts the traditional access control model by storing security codes and cryptographic credentials on the mobile device rather than on the access reader. The mobile device becomes the secure vault containing unique identifiers and cryptographic keys, while the reader only performs verification without storing sensitive validation data, thereby eliminating the security vulnerability of centralized code storage.
Solution Approach 2:
The patent introduces cryptographic protocols and secure communication channels as intermediaries between the mobile device and access reader. These intermediaries encrypt and authenticate the exchange of unique identifiers, preventing direct exposure of security codes and protecting against hacking attempts through layered security mechanisms.
3Ease of operation
If card keys are manufactured and disseminated for access control, then users can gain authorized access, but manufacturing and distribution costs are incurred
Solution Approach 1:
The patent replaces expensive, permanently valid card keys with temporary, software-based access credentials on mobile devices. These digital credentials can be generated, revoked, and updated at no marginal cost, replacing the need for expensive card manufacturing and distribution infrastructure while enabling flexible access management.
Solution Approach 2:
The patent leverages the mobile device's existing wireless communication capabilities (Bluetooth, Wi-Fi, NFC) to perform access control functions, eliminating the need for dedicated access card infrastructure. The mobile device serves multiple functions including communication, computation, and authentication, reducing overall system costs by utilizing already-deployed universal technology.
Data Source
AI summary
An access control system controls access to a restricted area. A mobile device exchanges messages with a backend server to validate a user and to control an actuator for a physical barrier responsive to validation. Beacon-based unique identifiers are calculated at validation time for the current location to facilitate the validation.