Wireless Home Entertainment Authentication via Random Remote Signal
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Solution Overview
Problem
Existing wireless home entertainment systems require manual user intervention for exchanging configuration information, making them vulnerable to eavesdropping and authentication ambiguity, particularly between devices in different homes.
Innovation Solution
A remote control device generates a wireless signal used for authentication between a server and components in a home network, allowing automatic verification and derivation of a common encryption key for secure communication, thereby preventing unauthorized access and reducing authentication ambiguity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual user intervention is used for exchanging configuration information, then authentication security is improved, but ease of operation deteriorates
Solution Approach 1:
A random button press on the remote control serves as an intermediary element that generates a unique authentication signal. This intermediary action allows automatic verification between devices while maintaining security, as the random button press creates an unpredictable authentication token that cannot be easily intercepted or replayed.
Solution Approach 2:
The system enables self-service authentication where devices automatically verify each other using the random button press signal without requiring manual configuration. The random button generation and verification process is performed automatically by the devices themselves, eliminating the need for users to manually enter configuration information while maintaining security.
2Ease of operation
If automatic authentication is implemented, then ease of operation is improved, but authentication ambiguity increases
Solution Approach 1:
The system performs preliminary actions by having the remote control generate a random button press signal that is then transmitted to both the first and second devices. This preliminary signal generation occurs before the actual authentication decision, allowing both devices to independently verify the same random signal and eliminate authentication ambiguity.
Solution Approach 2:
The system uses excessive action by having the user press a random button on the remote control, which generates more information than minimally required. This random button press creates a unique authentication token that is transmitted to multiple devices, ensuring that only the intended devices can authenticate while preventing ambiguous authentication with neighboring devices.
3Reliability
If configuration information is exchanged between server and component, then network security is improved, but device complexity increases
Solution Approach 1:
The system extracts the complex configuration information exchange process and replaces it with a simple random button press authentication mechanism. Instead of exchanging detailed configuration information between server and component, the system extracts only the essential authentication element (the random button signal) to verify device identity and establish secure communication.
Data Source
AI summary
Configuration information is exchanged between a home entertainment system server and various wireless components by pushing a button on the server and a random button on a remote control device as it is pointed at the devices sought to be authenticated.