Authenticated V2V Communication Using Optical License Plate Verification
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Solution Overview
Problem
Current communication systems for road users and traffic infrastructure, especially in autonomous or semi-autonomous vehicles, face challenges in ensuring secure and rapid authentication of messages, particularly in situations requiring immediate hazard reporting, where authenticity and confidentiality are crucial.
Innovation Solution
A method for authenticated communication between road users and traffic infrastructure using broadcast messages, which involves verifying identity information through optically detectable data like vehicle registration numbers, combined with public key infrastructure for secure encryption and decryption, enabling fast and secure communication even without central network involvement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional authentication methods are used in V2V communication, then security and authenticity are improved, but communication speed and response time deteriorate
Solution Approach 1:
The patent applies preliminary action by pre-establishing trust relationships through optical identification (license plate recognition) before communication occurs. The authentication data is prepared in advance based on visually detectable information, allowing rapid verification without complex real-time cryptographic handshakes, thus maintaining both security and speed
Solution Approach 2:
The patent replaces traditional mechanical/cryptographic authentication systems with an optical-based identification system. By using optically detectable identity information (license plates) instead of complex key exchange protocols, the system achieves faster authentication while maintaining reliability through the uniqueness and verifiability of optical identifiers
2Speed
If broadcast messages are used for rapid communication, then communication speed is improved, but message security and confidentiality deteriorate
Solution Approach 1:
The patent applies local quality by differentiating the treatment of message content based on the communication mode. Broadcast messages use optical identification for public verification, while unicast messages can employ additional cryptographic layers for confidential content. This allows rapid broadcast communication for hazard warnings while maintaining confidentiality where needed through selective application of security measures
3Reliability
If complex authentication protocols are implemented, then security level is improved, but system complexity and computational overhead increase
Solution Approach 1:
The patent extracts the essential authentication element from complex cryptographic protocols and isolates it as a simple optical identification process. By separating the identity verification function (handled optically) from the communication protocol, the system achieves high security with minimal complexity, removing unnecessary computational overhead while maintaining authentication integrity
Data Source
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AI summary
A method for authenticated communication between a first communication partner and a second communication partner is described, wherein the first communication partner and/or the second communication partner is a road user and/or part of a road infrastructure, wherein the first communication partner has, or is assigned, a further first identity information in addition to an optically detectable first identity information, and wherein the second communication partner has, or is assigned, a further second identity information in addition to an optically detectable second identity information.wherein the procedure comprises the following steps: -- in a first step, at a first time, the first communication partner determines or records a first distance information to the second communication partner and the optically detectable second identity information of the second communication partner, and a first message is transmitted wirelessly, wherein the first message comprises the first distance information, the optically detectable second identity information of the second communication partner, the optically detectable first identity information and the further first identity information of the first communication partner, as well as signature information of the first communication partner,-- In a second step, the first message is received by the second communication partner, and as part of the first message, the optically detectable second identity information of the second communication partner is detected or captured, and the signature information is verified by the second communication partner. -- In a third step, at a second point in time, the second communication partner determines or captures a second distance information to the first communication partner and the optically detectable first identity information of the first communication partner, and a second message is transmitted wirelessly, wherein the second message contains the second distance information, the optically detectable first identity information, and/or the further first identity information of the first communication partner.The optically detectable second identity information and the further second identity information of the second communication partner, as well as further signature information of the second communication partner, wherein the second message is received by the first communication partner and the further signature information is verified by the first communication partner.