Dynamic Vehicle Identification via Cryptographic Authentication

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Solution Overview

Problem

The increasing complexity of autonomous vehicle operations, particularly in urban environments, raises concerns about the control, ownership, and mission authenticity of unmanned aerial vehicles (UAVs), necessitating a reliable and trustworthy identification system.

Innovation Solution

A method for dynamic vehicle characterization using PKI-based authentication coding, combining identification, location, and time information, which is electronically signed and output via modulated light, radio, or sound waves, ensuring secure and forgery-proof verification.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional identification systems are used for vehicles, then the system complexity is low, but the reliability and security of vehicle identification is insufficient for autonomous operations

Engineering Contradiction:
Improvevehicle identification reliabilityVSAvoididentification system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The identification system is segmented into multiple independent components: vehicle identification code, location code, time code, and cryptographic signature. Each component serves a specific function and can be independently generated, transmitted, and verified, thereby enhancing reliability without creating a single point of failure that would increase overall system complexity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A certification authority (CA) is introduced as an intermediary that issues digital certificates to vehicles. This mediator enables trusted identification by verifying vehicle identities and issuing cryptographic credentials, thereby enhancing identification reliability while distributing system complexity across multiple trusted entities rather than requiring every vehicle to have complex verification capabilities.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If dynamic location and time information are added to identification codes, then the security against forgery is improved, but the processing complexity increases

Engineering Contradiction:
Improveforgery resistanceVSAvoidcoding and processing complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The vehicle's onboard system automatically generates its own identification code, location code, and time code, and creates the cryptographic signature without requiring external intervention for each authentication event. This self-service approach enhances security by ensuring the vehicle controls its own authentication data while avoiding the complexity of requiring external systems to continuously update and manage each vehicle's dynamic information.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces mechanical or manual identification methods with electronic cryptographic systems. Instead of physical tags or manual verification, the system uses digital signatures based on public key infrastructure, which provides superior forgery resistance. The complexity is managed by using standardized cryptographic algorithms rather than custom complex verification mechanisms.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Reliability

If electronic signatures based on public key infrastructure are implemented, then the authentication security is improved, but the computational requirements and energy consumption increase

Engineering Contradiction:
Improveauthentication securityVSAvoidenergy consumption for cryptographic operations
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The cryptographic key pairs are generated in advance and stored securely in the vehicle before authentication is needed. The public key and certificate are pre-configured in the vehicle's system, eliminating the need for real-time key generation during authentication. This preliminary setup reduces the computational burden and energy consumption during actual authentication operations while maintaining high security standards.

Inventive Principle:
Principle #10Preliminary action

4Measurement precision

If multiple codes (identification, location, time) are combined into authentication codes, then the measurement precision of vehicle status is improved, but the loss of time for code generation and transmission increases

Engineering Contradiction:
Improvevehicle status precisionVSAvoidcode generation and transmission time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The identification code, location code, and time code are merged into a single integrated authentication code structure. This consolidation allows all vehicle status information to be transmitted in one unified message rather than multiple separate transmissions, thereby maintaining high measurement precision of vehicle status while reducing the total time required for code generation and transmission.

Inventive Principle:
Principle #5Merging (Combining)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This solution provides secure and reliable identification and authentication of vehicles, enabling effective control and monitoring of UAVs, ensuring they operate within authorized areas and times, thereby enhancing safety and regulatory compliance.

Implementation Method 1

the output coding is output. For this purpose it can be provided that the output coding can take place via a correspondingly modulated light emitting device

Methodology Applied
Scientific EffectLight emission and modulation: Light

Implementation Method 2

The determination of the location information can be supported by a satellite-based position determination system such as GPS, GLONASS, Galileo or Beidou

Methodology Applied
Scientific EffectSatellite signal positioning: Time of Flight

Data Source

PatentEP3460696A3Dynamic marking of a vehicle and testing
Publication Date: 2019.04.03 BUNDESDRUCKEREI GMBH
  • EP3460696A3 patent drawing
  • EP3460696A3 patent drawing

AI summary

A method for the dynamic identification of a vehicle is described, comprising: providing an identification code with information identifying the vehicle; determining location information that designates a location of the vehicle; providing a location code with the location information; combining the identification code and the location code to provide an authentication code; signing the authentication code to provide a signature code; combining the authentication code with the signature code to provide an output code; and outputting the output code.