Multi-Sensor Fingerprint Authentication Sequence for Vehicle Security
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Solution Overview
Problem
Current vehicle security systems rely on limited input sequences, which can be compromised by adversarial attacks and lack enhanced security without increasing the number of physical buttons, necessitating a more secure authentication method.
Innovation Solution
Integration of multiple fingerprint sensors with a memory device storing authentication sequences of fingerprint to fingerprint sensor combinations, requiring users to enter a sequence of fingerprints at different sensors for activation, combining biometric and passcode authentication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If additional physical buttons are added to increase the number of possible input sequences, then security is improved, but device complexity and physical size increase
Solution Approach 1:
The patent segments the authentication function across multiple fingerprint sensors positioned at different locations, where each sensor can capture fingerprints from different fingers. This segmentation allows the system to create complex authentication sequences without adding physical buttons, as each sensor location becomes an independent element in the authentication sequence
Solution Approach 2:
Each fingerprint sensor serves multiple functions: it can detect different fingerprints from different fingers, each fingerprint can represent multiple meaning (different authentication values), and the same physical sensor can be used in different positions within the authentication sequence. This multi-functionality replaces the need for multiple dedicated physical buttons
2Reliability
If additional physical buttons are added to increase the number of possible input sequences, then security is improved, but the area occupied by the device increases
Solution Approach 1:
The patent transitions from a one-dimensional button layout to a multi-dimensional authentication space by utilizing spatial distribution of multiple fingerprint sensors and the dimensional diversity of different fingers. The authentication sequence is defined not by physical button positions alone but by combinations of sensor locations and fingerprint types, effectively adding dimensional complexity without increasing physical footprint
3Reliability
If the number of fingerprint sensors is increased to enhance security, then security is improved, but device complexity increases
Solution Approach 1:
The patent changes the authentication parameters from simple button presses to multi-dimensional fingerprint sequences that incorporate sensor location, finger type, and fingerprint pattern. This parameter transformation allows the system to achieve higher security with a moderate number of sensors by exploiting the combinatorial complexity of the expanded parameter space rather than simply increasing sensor quantity
Data Source
AI summary
A security device is disclosed. The security device includes multiple fingerprint sensors. Activating the security device requires users to enter an authentication sequence comprised of different finger-to-fingerprint-sensor combinations. This increases the number of available distinct elements that can be used in an authentication sequence of a given length for a fixed number of buttons. The device also combines two different modes of authentication to improve security. The security device can be integrated into motor vehicles, mobile computing devices or other systems.