Bluetooth Gateway Pairing Bound to EAP Authentication
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Solution Overview
Problem
Existing Bluetooth devices require user interaction for secure pairing, which is cumbersome for enterprise use cases involving mobile devices that need to connect to multiple gateways across different environments.
Innovation Solution
A Bluetooth device and gateway system that uses a shared security credential with an authentication server to perform Extensible Authentication Protocol (EAP) authentication, binding the pairing to the EAP method, allowing secure connections without user interaction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If Bluetooth devices use traditional SSP pairing modes (Numeric Comparison, Passkey Entry, OOB), then security is improved through authentication, but user interaction is required which becomes cumbersome for enterprise use cases
Solution Approach 1:
The patent applies preliminary action by pre-provisioning Bluetooth devices with security credentials (certificates, private keys, or pre-shared keys) during manufacturing or initial setup. This allows the devices to perform automated EAP authentication with gateways without requiring user interaction during pairing, while maintaining strong security through server-verified credentials
Solution Approach 2:
The patent introduces an authentication server as an intermediary between Bluetooth devices and gateways. The server verifies device credentials and manages the EAP authentication process, enabling secure automated pairing without direct user involvement. The server acts as a trusted third party that mediates the authentication between devices and multiple gateways
2Adaptability or versatility
If Bluetooth devices connect to multiple gateways across different environments, then adaptability is improved, but the need for user interaction at each pairing increases complexity
Solution Approach 1:
The patent applies universality by designing a system where a single security credential provisioned in a Bluetooth device can be used to authenticate with multiple different gateways across various environments. The EAP authentication framework with server verification enables the device to universally connect to any gateway that trusts the authentication server, eliminating the need for environment-specific pairing configurations
Solution Approach 2:
The patent implements self-service by enabling Bluetooth devices to autonomously perform EAP authentication with gateways using their pre-provisioned credentials. The devices automatically manage their own authentication process without requiring user intervention or manual pairing configuration, allowing them to independently connect to multiple gateways across different environments
3Extent of automation
If EAP authentication is implemented with pre-provisioned credentials, then automated pairing is achieved, but device provisioning complexity increases
Solution Approach 1:
The patent applies preliminary action by performing credential provisioning during manufacturing or initial device setup, before the device enters service. Security credentials are pre-loaded into the device's secure storage, enabling automated EAP authentication without requiring complex provisioning procedures at the time of use. This shifts the complexity to an earlier stage when devices are being manufactured or initially configured
Data Source
AI summary
A Bluetooth device (is disclosed, the Bluetooth device being provisioned with a security credential that is shared with an authentication server. The Bluetooth device comprises processing circuitry configured to use a Bluetooth pairing mechanism to establish a pairing with a Bluetooth gateway by establishing a shared secret key with the Bluetooth gateway and to perform an Extensible Authentication Protocol (EAP) authentication method towards the authentication server using the security credential, wherein performing the EAP authentication method comprises using the paired Bluetooth gateway to forward messages to and from the authentication server. The processing circuitry is further configured to bind the pairing established with the paired Bluetooth gateway to the performed EAP authentication method.