User Equipment Sensor Fingerprint Compression for Secure Authentication
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Solution Overview
Problem
Current authentication systems using fingerprint images from image sensors are vulnerable to identity theft, as stolen fingerprints can be used to generate artificial images for authentication, compromising security.
Innovation Solution
Implementing a random projection algorithm to compress and irreversibly encode sensor fingerprints, eliminating the need for a secret shared between devices and ensuring that only compressed versions are transmitted, making it impossible to reverse-engineer the original fingerprint for authentication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the fingerprint is stored in clear form on the server side, then the authentication system is simple to implement, but the security is compromised as attackers can steal fingerprints and generate artificial images for authentication
Solution Approach 1:
The patent applies parameter changes by transforming the fingerprint from its original clear form into a compressed binary representation through random projection. This changes the state of the fingerprint data from readable to encoded, maintaining authentication functionality while preventing theft and artificial image generation. The compressed form preserves essential features for authentication but removes the ability to reconstruct the original fingerprint.
2Reliability
If the fingerprint is compressed using random projection algorithm, then the security is enhanced by making it impossible to reverse-engineer the original fingerprint, but the device complexity increases due to the need to implement and process the compression algorithm
Solution Approach 1:
The patent replaces the mechanical approach of storing and transmitting clear fingerprints with an algorithmic substitution using random projection compression. Instead of physical security measures or complex encryption schemes, the system uses mathematical transformation to achieve security. The random projection algorithm substitutes traditional security mechanisms with a computationally efficient compression approach that inherently provides security through irreversibility.
Data Source
AI summary
A device, a user equipment, and methods for registering and authenticating the user equipment are provided, wherein the user equipment includes an image sensor, communication components for communicating with the device, control and processing components configured for acquiring at least one image by way of the image sensor, generating an authentication sensor fingerprint on the basis of the at least one acquired image, coding at least one portion of the authentication sensor fingerprint by way of a random projection algorithm, so as to generate at least one compressed portion (W′) of the authentication sensor fingerprint, transmitting, through the communication components, the at least one compressed portion (W′) to the device.