Electronic Notary Biometric Authentication System

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Solution Overview

Problem

Conventional signature verification systems are vulnerable to spoofing and intrusion due to the use of fraudulent identification and the lack of continuous authentication, especially when notaries are not available, leading to risks of unauthenticated signatures.

Innovation Solution

A method and system for continuous biometric sampling and validation during the signature process, using a biometric sensor and processor to authenticate the signer by generating and validating a sequence of biometric samples, ensuring continuity and preventing interruptions, thereby reducing spoofing opportunities.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a notary is used to authenticate signatures, then the reliability of signature verification is improved, but the device complexity and cost increase

Engineering Contradiction:

Improvesignature verification reliabilityVSAvoidnotary system complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent replaces the mechanical/manual notary system with an electronic automated system that uses biometric sensors, processors, and software algorithms to perform authentication functions previously requiring human notaries. This substitution maintains reliability while reducing complexity and cost.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system enables self-service authentication where the signer's own biometric characteristics (voice, fingerprint, facial features) are used to verify their identity without requiring a third-party notary. The electronic device performs the authentication autonomously, eliminating the need for external notary services.

Inventive Principle:

Principle #25Self-service

2Reliability

If biometric sampling is performed continuously during signature, then the reliability against spoofing is improved, but the use of energy and processing time increase

Engineering Contradiction:

Improveanti-spoofing reliabilityVSAvoidbiometric sampling energy consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The system performs continuous biometric sampling throughout the entire signature process rather than taking discrete samples. This continuous monitoring ensures that the signer's biometric characteristics are consistently verified, preventing spoofing attempts while maintaining energy efficiency through optimized sampling rates.

Inventive Principle:

Principle #20Continuity of useful action

Solution Approach 2:

The system uses multiple types of biometric samples (voice, fingerprint, facial features) simultaneously during the signing process. This multi-factor authentication approach provides enhanced security against spoofing while distributing the processing load to manage energy consumption effectively.

Inventive Principle:

Principle #16Partial or excessive action

Data Source

PatentUS9734386B2Methods, systems and devices for electronic notary with signature and biometric identifier

Publication Date: 2017.08.15 QUALCOMM INC

AI summary

A method, system and device are provided for authenticating a signature made by a signer. When the signer is making the signature a biometric quantity associated with the signer may be sampled. The sampling generates a sequence of biometric samples of the biometric quantity. Continuity of generated sequence of biometric samples of the biometric quantity is validated. Each of the biometric samples of the biometric quantity in the generated sequence is validated. The signature of the signer may be authenticated when the generated sequence of biometric samples is validated, and a continuity of the biometric samples is validated.