Bluetooth Central Node Authentication Synchronization
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing methods for Bluetooth wireless communication authentication are inconvenient and degrade security when simplifying the process for multiple device pairings in trusted environments, especially in fixed communication networks.
Innovation Solution
A central node is introduced to manage and synchronize authentication information among Bluetooth devices, simplifying the authentication process while maintaining security through a unified management system that configures default policies and updates link keys across devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a shared key is preset within an organization to simplify authentication, then authentication convenience is improved, but security is degraded
Solution Approach 1:
The patent divides the authentication system into two segments: a central node that manages authentication keys and a list of trusted devices, and individual Bluetooth devices that perform authentication. This segmentation allows the central node to maintain security by controlling key distribution while individual devices benefit from simplified authentication processes, resolving the contradiction between security and convenience.
Solution Approach 2:
The central node acts as an intermediary between Bluetooth devices for authentication purposes. It maintains a list of trusted devices and facilitates authentication by distributing link keys to the central node. This intermediary approach enables simplified authentication for trusted devices while maintaining security through centralized key management, effectively resolving the technical contradiction.
2Reliability
If an exponential pairing process is used for multiple Bluetooth devices, then authentication security is maintained, but operational convenience is degraded
Solution Approach 1:
The system performs preliminary authentication by establishing a link between each Bluetooth device and the central node before actual communication. The central node pre-determines which devices are trusted and distributes link keys in advance. This preliminary action eliminates the need for repeated exponential pairing processes during actual device communication, maintaining security while significantly improving operational convenience.
3Ease of operation
If authentication is simplified for trusted environments, then operational convenience is improved, but security is degraded
Solution Approach 1:
The patent applies local quality by differentiating authentication requirements based on device trust status. Trusted devices in the central node's list receive simplified authentication processes with pre-distributed link keys, while unauthorized devices are rejected. This localized approach to authentication quality allows convenience for trusted devices without compromising overall system security.
Data Source
Figure 1~2
Figure 3
Figure 4
AI summary
A system and method for quick authentication between Bluetooth devices are disclosed. The method includes: in a trusted environment (10, 13) of a Bluetooth device, a central node (11) is added, which implements authentication to various trusted devices (12) in the trusted environment and stores an information list containing information of each of the trusted devices; after the information of the trusted device in the trusted environment has been updated, the central node sends synchronous information to the trusted device required to update synchronous information, and the trusted device, which has received the synchronous information, implements update of the synchronous information.