Sonic One-Time Password Authentication for Smart Speakers

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Solution Overview

Problem

Current user authentication in voice-controlled systems, primarily relying on voice recognition, is flawed, leading to poor user experience, false negatives, false positives, vulnerability to biometric hacks, and unauthorized access in noisy environments.

Innovation Solution

A sonic one-time password (OTP) system where a smart speaker generates and plays a sonic OTP, which is received by a user's mobile device, decoded, and transmitted back to an authentication server for verification, ensuring secure and noise-resilient authentication.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If voice recognition authentication is used, then the authentication process is simple and fast, but the system becomes vulnerable to false positives, false negatives, and biometric hacks

Engineering Contradiction:
Improveauthentication process simplicityVSAvoidauthentication security
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent introduces an intermediary authentication mechanism (one-time password system) between the user and the smart speaker. Instead of directly using voice biometrics, the system mediates authentication through a secure OTP verification process, eliminating false positives/negatives and biometric hacking vulnerabilities while maintaining operational simplicity

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces the mechanical/biometric voice recognition system with an electronic/digital OTP verification system. This substitution eliminates the inherent flaws of biometric authentication (false positives, false negatives, vulnerability to hacks) while preserving the ease of operation through automated digital verification

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Adaptability or versatility

If voice recognition is used in noisy environments, then the authentication can be performed anywhere, but the accuracy decreases due to background noise

Engineering Contradiction:
Improveenvironmental adaptabilityVSAvoidvoice recognition accuracy
Core Design Contradiction:
Adaptability or versatilityVSMeasurement precision

Solution Approach 1:

The OTP system acts as an intermediary that is insensitive to environmental noise. The numerical password transmission and verification process remains accurate regardless of background acoustic conditions, preserving environmental adaptability while eliminating noise-related accuracy degradation

Inventive Principle:
Principle #24Intermediary (Mediator)

3Reliability

If traditional authentication methods are used, then security can be improved, but the user experience deteriorates due to complexity

Engineering Contradiction:
Improveauthentication securityVSAvoiduser experience
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The system implements self-service authentication where the user simply speaks their one-time password without needing to understand complex security protocols. The automated verification process handles all security checks, providing strong authentication while maintaining excellent user experience through simplicity

Inventive Principle:
Principle #25Self-service

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This method provides a secure, user-friendly, and effective authentication process that prevents unauthorized access and biometric hacks, even in noisy conditions, by using a credential-less, proximity-dependent, and short-lived sonic OTP transmission.

Implementation Method 1

playing a sonic one-time password (OTP) on the smart speaker

Methodology Applied
Scientific EffectAcoustic wave transmission: Sound

Data Source

PatentUS12160423B1User authentication of smart speaker system
Publication Date: 2024.12.03 CERTUS TECH SYST
  • US12160423B1 patent drawing
  • US12160423B1 patent drawing
  • US12160423B1 patent drawing

AI summary

Methods for authenticating a user utilizing a smart speaker system are presented, the methods including: requesting a user authentication by issuing a voice command to a smart speaker; playing a sonic one-time password (OTP) on the smart speaker received from an authentication server in response to the requesting a user authentication; receiving the sonic OTP by a mobile device of the user; transmitting an OTP decoded from the sonic OTP to the authentication server; and authorizing the user by the authentication server to execute a secure transaction using the smart speaker system.