Bluetooth Mutual Recognition via Resolvable Private Address
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Solution Overview
Problem
Current Bluetooth technologies require complex user operations for mutual recognition or trust between devices, leading to low efficiency in scenarios like facial recognition payments and digital car key sharing.
Innovation Solution
A method for mutual recognition or trust between Bluetooth devices is implemented by configuring a same IRK in multiple devices, allowing one device to generate a resolvable private address and send a broadcast message that can be verified by other devices with the same IRK, thereby establishing a secure connection without active user operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual user operations are used for Bluetooth device pairing and authentication, then security can be maintained through user confirmation, but operation complexity increases and efficiency decreases
Solution Approach 1:
The patent applies preliminary action by pre-configuring the same IRK (Identity Resolving Key) in multiple Bluetooth devices before actual use. This allows devices to automatically perform mutual recognition and authentication without requiring manual user operations during the pairing process, thereby reducing operation complexity while maintaining security through pre-established trust relationships.
2Productivity
If broad information collection is performed during Bluetooth device discovery, then more potential devices can be found, but user privacy and data security are compromised
Solution Approach 1:
The patent applies local quality by making Bluetooth addresses resolvable only to specific devices that possess the corresponding IRK. Instead of broad information collection, each device can only resolve and identify Bluetooth addresses of devices that share its IRK, thereby narrowing the information collection scope to only relevant devices and protecting user privacy while maintaining discovery efficiency for authorized devices.
Data Source
AI summary
A method includes receiving, by a first Bluetooth device, an identity resolving key (IRK) from a server, and generating a resolvable private address based on the IRK. The method further includes sending, by the first Bluetooth device, a broadcast message. The broadcast message includes the resolvable private address. The resolvable private address is successfully verified by a second Bluetooth device pre-configured with the IRK.