Immutable Authentication Code for Input Unit
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Solution Overview
Problem
Smartphones and critical systems like vehicles are vulnerable to malicious remote attacks that hijack input devices such as cameras and microphones or steering and braking systems, lacking effective authentication mechanisms to ensure only authorized physical activation.
Innovation Solution
An electronic system architecture that integrates immutable authentication codes, where components are uniquely identifiable and configured during production, ensuring only physical user input can activate target components by transferring a unique, encrypted code between components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If components are made remotely accessible and controllable, then system functionality and convenience are improved, but vulnerability to malicious remote attacks increases
Solution Approach 1:
The patent implements preliminary authentication by embedding unique immutable codes in components during manufacturing, establishing security credentials before the component is deployed or activated. This preliminary authentication mechanism ensures that only authorized physical interactions can activate components, preventing malicious remote attacks while maintaining legitimate remote functionality.
Solution Approach 2:
The patent introduces an intermediary authentication code as a mediator between the physical component and remote control systems. This code acts as a security barrier that must be verified before allowing remote activation, thus enabling convenient remote operation while blocking unauthorized access attempts.
2Reliability
If authentication mechanisms are added to components, then security against remote hijacking is improved, but device complexity increases
Solution Approach 1:
The patent extracts the authentication functionality from the main control software and embeds it directly into the hardware components as immutable codes. This separation places the security-critical authentication logic in the component itself rather than relying on external software validation, reducing overall system complexity while maintaining high security.
Solution Approach 2:
The patent implements self-service authentication where each component contains its own unique immutable code and performs self-validation. The component autonomously verifies authentication credentials without requiring complex external authentication infrastructure, simplifying the overall system architecture while ensuring reliable security.
3Reliability
If immutable codes are embedded in components during production, then component authentication reliability is improved, but manufacturing process complexity increases
Solution Approach 1:
The patent merges the authentication code embedding process with the existing component manufacturing process. By integrating the code insertion into the standard production workflow rather than adding a separate post-manufacturing step, the solution maintains high authentication reliability while minimizing impact on manufacturing efficiency and complexity.
Data Source
AI summary
An electronic system comprising: a target component and an input unit, the input unit is configured to receive a command from a user of the electronic system; the input unit stores a unique non-configurable code, the input unit is configured to receive a physical request to activate the target component, the input unit is coupled to the target component with an interface component, said interface is configured to enable a transfer of the unique non-configurable authentication code from a memory of the input unit to a memory address accessible to the target component, such that when the unique non-configurable code is correct, the target component is activated.