Vehicle Computing Component Installation Integrity Verification

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Solution Overview

Problem

Existing methods for installing data-processing components in vehicles lack robust integrity and authenticity verification, which can lead to potential cyber-attacks and unauthorized software updates.

Innovation Solution

A method involving the receipt and verification of a device packet with a manifest containing a hash value of the data-processing component, followed by the installation only if the integrity of the manifest and the correspondence between the hash value and the received component are positively verified.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If data-processing component installation is performed without robust verification, then installation speed and simplicity are improved, but system security and reliability deteriorate due to potential cyber-attacks and unauthorized updates

Engineering Contradiction:
Improveinstallation speedVSAvoidsystem security
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent applies preliminary action by performing verification of the manifest and hash values before the actual installation of the data-processing component. The electronic equipment item verifies the integrity of the manifest and compares hash values in advance, ensuring that only authenticated components are installed. This pre-verification approach maintains installation speed while significantly improving system security and reliability.

Inventive Principle:
Principle #10Preliminary action

2Adaptability or versatility

If separate transmission of device packet and data-processing component is implemented, then flexibility and adaptability are improved, but device complexity increases due to multiple verification steps

Engineering Contradiction:
Improvedesign flexibilityVSAvoidverification process complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent applies segmentation by dividing the installation data into two separate parts: a device packet containing the manifest and hash value, and the actual data-processing component. This segmentation allows flexible transmission and installation while the verification process manages the complexity through structured comparison of hash values between the two parts, ensuring security without excessive complexity.

Inventive Principle:
Principle #1Segmentation

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

Ensures the integrity and authenticity of data-processing components during installation, preventing unauthorized updates and cyber-attacks by using cryptographic verification methods.

Implementation Method 1

the integrity of the manifest is verified by applying a cryptographic signature verification algorithm to the first signature and to the first manifest

Methodology Applied
Scientific EffectCryptographic signature verification:

Implementation Method 2

verifying the correspondence between the hash value of the data-processing component and the data-processing component received

Methodology Applied
Scientific EffectHash value verification:

Data Source

PatentUS12309279B2Method for installing a computing component and associated electronic device
Publication Date: 2025.05.20 NISSAN MOTOR CO LTD
  • US12309279B2 patent drawing
  • US12309279B2 patent drawing
  • US12309279B2 patent drawing

AI summary

A method for installing a computing component in an electronic device fitted in a vehicle, comprising the steps consisting of: receiving a device packet comprising a manifest including a hash value of the computing component; checking the integrity of the manifest; receiving the computing component; checking the correlation between the hash value of the computing component and the computing component received; installing the computing component only in the case of a positive check of the integrity of the manifest and a positive check of the correlation. An associated electronic device is also described.