Intermediate Device Tunneling for Secure Wireless Pairing
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Solution Overview
Problem
Existing methods for configuring Bluetooth or other wireless communication links between devices are cumbersome and lack security, as they rely on manual passcode entry and transmit sensitive information in cleartext, making them vulnerable to interception.
Innovation Solution
A system that uses an intermediate device to 'tunnel' commands and data between a host device and an accessory, allowing for secure configuration of wireless links through a point-to-point wired connection, using tunneling commands to repack and forward information in a format suitable for the accessory, thereby establishing and managing wireless connections without exposing sensitive information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If manual passcode entry and cleartext transmission are used for Bluetooth configuration, then device interoperability is achieved, but security is compromised due to vulnerability to interception
Solution Approach 1:
The patent introduces an intermediate device (such as a docking station or base unit) that acts as a secure mediator between the host device and accessory. This intermediary establishes a secure wired connection for configuration purposes, eliminating the need for cleartext wireless transmission of sensitive information while maintaining device interoperability. The intermediate device manages the pairing process and securely transmits configuration data.
2Ease of operation
If Bluetooth pairing information is transmitted wirelessly in cleartext, then configuration simplicity is maintained, but security is worsened due to interception risks
Solution Approach 1:
The intermediate device serves as a secure intermediary that receives configuration information from the host device via a secure wired connection and forwards it to the accessory. This maintains configuration simplicity for the end user while eliminating security vulnerabilities associated with wireless cleartext transmission.
Solution Approach 2:
The patent replaces the wireless electromagnetic transmission mechanism with a wired physical connection mechanism for transmitting sensitive configuration data. This substitution eliminates the security vulnerability of wireless cleartext transmission while maintaining the ease of configuration through the intermediate device's automated processes.
3Reliability
If an intermediate device is introduced to securely tunnel commands and data, then security is improved, but device complexity increases
Solution Approach 1:
The intermediate device is designed to perform multiple functions: it serves as a secure configuration channel, a charging station, a data synchronization point, and a Bluetooth manager. By consolidating these functions into a single device, the overall system complexity is managed despite the added security layer.
Solution Approach 2:
The intermediate device automatically manages the secure tunneling process, including establishing secure connections, encrypting/decrypting data, and coordinating communication between host and accessory. This automation eliminates the need for users to manually configure security settings, thereby improving security without significantly increasing operational complexity for end users.
4Reliability
If tunneling commands are used to forward information through an intermediate device, then security is enhanced, but communication time increases due to additional processing steps
Solution Approach 1:
The intermediate device establishes secure connections and pre-configures tunneling parameters before actual data transmission occurs. By preparing the secure communication channel in advance, the device minimizes the time penalty associated with security processing during active data transfer.
Solution Approach 2:
Once the secure tunnel is established, the intermediate device maintains continuous encrypted communication channels, allowing data to flow continuously without repeated authentication handshakes. This continuity reduces the time overhead of security processing compared to establishing secure connections for each individual data transfer.
Data Source
Figure 1A~1B
Figure 2
Figure 3~4A
AI summary
A method for communicating information between a first electronic device and a second electronic device, the method comprising: receiving, by an intermediate device, a first tunneling command from a first electronic device, the first tunneling command conforming to a first protocol and incorporating a tunneled information item therein; converting, by the intermediate device, the first tunneling command to a second tunneling command, the second tunneling command conforming to a second protocol and incorporating the tunneled information item therein; and transmitting, by the intermediate device, the second tunneling command to a second electronic device, the second electronic device being configured to extract the tunneled information item from the second tunneling command, wherein the tunneled information item includes information usable to establish a wireless communication link between the first electronic device and the second electronic device.