Dynamic Bluetooth PIN Generation for Secure Pairing
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Solution Overview
Problem
Existing Bluetooth pairing methods for mobile communication devices are insecure as they rely on fixed PINs, which can be shared and are cumbersome to change, and previous security systems either use static authorization codes or GPS location verification without PIN verification.
Innovation Solution
A method using a central control device to generate a dynamically generated Bluetooth compatible PIN based on control parameters such as location, time, and device address, which is communicated to the mobile device and used for authentication, ensuring unique PINs for each authorization attempt.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a fixed PIN is used for Bluetooth pairing, then the authentication process is simple and easy to use, but the security is compromised because the PIN can be shared and accessed by unauthorized users
Solution Approach 1:
The patent implements dynamic PIN generation where the PIN changes based on control parameters such as location, time, and device address. This transforms the static PIN into a dynamic credential that is unique to each authorization attempt, resolving the contradiction between ease of use and security by maintaining simplicity while eliminating the ability to share or reuse PINs
Solution Approach 2:
The system changes the PIN based on multiple parameters including geographic location, time of day, and device address. This parameter-based generation ensures that the same user will have different PINs at different locations or times, providing security without requiring users to remember multiple PINs, thus resolving the contradiction between operational simplicity and security
2Reliability
If the PIN is changed frequently to maintain security, then the security is improved, but the complexity of the system increases and requires administrator intervention for each change
Solution Approach 1:
The system automatically generates PINs based on control parameters without requiring administrator intervention for each PIN change. The mobile communication device and authorization device work together to generate and validate PINs autonomously, eliminating the need for manual PIN distribution and reducing system complexity while maintaining high security through frequent effective PIN changes
3Ease of manufacture
If a static authorization code is used, then the system is simple to implement, but it lacks the ability to provide unique authentication for each access attempt
Solution Approach 1:
The patent generates PINs dynamically based on control parameters including location, time, and device address. This approach maintains implementation simplicity by using standard Bluetooth pairing mechanisms while achieving authentication uniqueness through parameter-based PIN variation, resolving the contradiction between ease of implementation and authentication uniqueness
Data Source
AI summary
A method of controlling an authorization device arranged to authorize a mobile communication device, the method including the steps of: a central control device generating a control parameter associated with the one or more authorization devices, the central control device communicating the control parameter to the one or more authorization devices, the central control device generating a Bluetooth compatible PIN based on the control parameter, and the central control device communicating the PIN to a mobile communication device.