Biometric Invariant Key Generation for Secure Authentication

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Solution Overview

Problem

Existing cybersecurity methods fail to reliably generate invariant cryptography keys or codes from biometric templates due to the variability of biometric data, leading to vulnerabilities in securing financial transactions and critical infrastructure.

Innovation Solution

A system that uses biometric authentication, combining transformations of biometric templates to generate an invariant, which is then used to derive cryptography keys or codes, ensuring secure transactions by integrating biometric data with PIN/password information and dynamic identity codes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If biometric templates are used to generate cryptography keys, then user authentication capability is improved, but reliability of key generation deteriorates due to biometric variability

Engineering Contradiction:

Improveuser authentication capabilityVSAvoidreliability of key generation

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The patent introduces an intermediary transformation process that converts variable biometric templates into invariant representations. This intermediary step acts as a mediator between the biometric input and the cryptography key generation, eliminating the direct dependency on biometric variability while preserving authentication capability.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The system changes the parameters of the biometric template by applying geometric transformations (rotation, translation, scaling) to create multiple representations. By processing these transformed versions through invariant feature extraction, the system generates reliable cryptography keys that are independent of the original biometric variability.

Inventive Principle:

Principle #35Parameter changes

2Ease of operation

If biometric variability is accommodated for authentication, then ease of operation is improved, but measurement precision of cryptography key generation deteriorates

Engineering Contradiction:

Improveease of biometric authenticationVSAvoidprecision of cryptography key generation

Core Design Contradiction:

Ease of operationVSMeasurement precision

Solution Approach 1:

The system performs preliminary transformations on the biometric template before key generation, creating a standardized invariant representation. This preliminary action prepares the data in advance to eliminate variability issues, ensuring that the subsequent cryptography key generation process operates on consistent, precise input regardless of biometric variations.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

An intermediary invariant extraction process is introduced between biometric input and key generation. This intermediary step filters out variability while preserving the essential authentication characteristics, thereby maintaining ease of operation while improving measurement precision for key generation.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Device complexity

If traditional cybersecurity methods are used, then device complexity is reduced, but security against cyberattacks deteriorates

Engineering Contradiction:

Improvecomplexity of security systemVSAvoidsecurity reliability

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The patent replaces traditional mechanical/security-based authentication systems with a biometric-based system that uses mathematical transformations and invariant theory. This substitution introduces advanced processing capabilities that enhance security reliability while managing complexity through algorithmic approaches rather than physical security mechanisms.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system changes the fundamental parameters of security by moving from static passwords or physical tokens to dynamic biometric features processed through invariant transformations. This parameter change enables more reliable security against cyberattacks while maintaining manageable device complexity through efficient algorithmic implementation.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS9152779B2Protecting codes, keys and user credentials with identity and patterns

Publication Date: 2015.10.06 FISKE MICHAEL STEPHEN

AI summary

Machine and method of accessing information securely are disclosed. Two sets of user identifying data are acquired. A transformation is established by mapping of one set of data onto another set of data or onto itself. An invariant is generated from the transformation of the user identifying data. An authentication key is generated using the invariant. In an embodiment, the invariant is a relationship between two objects that remains static under transformations between the two objects. In an embodiment, the invariant is a cryptography key. In an embodiment, the transformation(s) help perform an authentication of the user and are executed by digital computer program instructions. In an embodiment, pattern transformation(s) are represented with colors, geometry, or frequencies.