Tire Monitoring Network Key Exchange With Broadcast Cryptographic Parameters
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Solution Overview
Problem
Existing tire monitoring systems lack efficient methods for establishing secure communication and configuration between multiple tire monitoring devices, leading to potential security risks and increased message traffic.
Innovation Solution
A method involving each tire monitoring device broadcasting cryptographic parameters, such as public keys and cryptographic commitments, using a router device to reduce message exchange, and generating shared keys through pseudo-random functions for secure communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If each tire monitoring device broadcasts cryptographic parameters to every other device individually, then secure communication can be established, but message traffic increases significantly
Solution Approach 1:
The patent combines multiple cryptographic parameter exchanges into a single broadcast message. Instead of each device sending individual messages to every other device, all cryptographic parameters (public keys, commitments, nonces) are merged into one comprehensive broadcast message that all devices can process simultaneously, reducing message traffic from O(n²) to O(n).
Solution Approach 2:
The patent introduces a coordinator device as an intermediary that collects cryptographic parameters from all tire monitoring devices and distributes them through centralized broadcast messages. This mediator approach eliminates the need for direct peer-to-peer message exchanges between all device pairs, significantly reducing overall message traffic while maintaining security.
2Reliability
If pre-installed cryptographic keys are used, then secure communication can be established, but device complexity and configuration requirements increase
Solution Approach 1:
The patent enables tire monitoring devices to generate their own cryptographic key pairs and cryptographic parameters autonomously without requiring pre-installed keys or complex manual configuration. Each device self-generates public keys, private keys, and cryptographic commitments, then broadcasts them for network-wide security establishment, dramatically simplifying deployment and configuration.
Solution Approach 2:
The patent performs cryptographic parameter generation and distribution as a preliminary setup phase before actual monitoring operations begin. By establishing all cryptographic parameters in advance through broadcast messages, the system prepares secure communication channels beforehand, eliminating the need for complex real-time key management during operational phases.
Data Source
AI summary
Disclosed is a method of exchanging cryptographic parameters in a network of tire monitoring devices, the method including broadcasting, from each tire monitoring device to a plurality of other tire monitoring devices, a message comprising a cryptographic parameter generated by that respective tire monitoring device.