Modulated Auditory Authentication Against Recorded Voice Fraud
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Solution Overview
Problem
Existing authentication systems, despite secure methods like multi-factor authentication, are vulnerable to fraud due to the risk of voice biometrics being recorded and used for unauthorized access, especially in public settings.
Innovation Solution
Implementing a voice modulation system that alters the tone and pitch of a user's voice during authentication, combined with a unique encryption key, to generate modulated auditory input for secure comparison against stored data, ensuring the user's voice cannot be identified or compromised.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If voice biometrics are used for authentication, then authentication convenience is improved, but security against fraud deteriorates due to voice recording risks
Solution Approach 1:
The patent applies dynamics by transforming the static voiceprint into a dynamic, time-varying modulation key that changes continuously. The voice characteristics (pitch, tone, timbre) are extracted and used to modulate authentication data in real-time, creating a dynamic authentication mechanism that cannot be captured by static recordings.
Solution Approach 2:
The patent changes physical parameters of voice authentication by extracting voice characteristics (pitch, tone, timbre) and using them to modulate authentication data. This transforms the authentication process from comparing static voiceprints to comparing modulated signals with changing parameters, preventing fraud from recorded voices.
2Reliability
If voice modulation is applied to enhance security, then security against fraud is improved, but system complexity deteriorates
Solution Approach 1:
The patent introduces voice characteristics (pitch, tone, timbre) as an intermediary between the user's voice and the authentication data. These characteristics modulate the authentication signal, creating a secure link that prevents direct copying of voice recordings while adding manageable complexity through the modulation process.
Solution Approach 2:
The patent replaces traditional mechanical voice comparison systems with an acoustic modulation system. Instead of directly comparing recorded voice samples, the system uses voice characteristics to modulate authentication data, substituting a more secure acoustic field-based mechanism for traditional signal processing approaches.
Data Source
AI summary
In aspects of authentication based on modulated auditory input, a computing device implements an auditory authentication manager that receives an auditory input as an account access request, such as via a user interface on a mobile device. A voice modulation system of the auditory authentication manager modulates the auditory input to generate a modulated auditory input. The auditory authentication manager can then compare the modulated auditory input to stored modulated voice data, such as generated from an initial auditory input previously received as provided by a user of the mobile device. The auditory authentication manager can authenticate the auditory input for the account access request based at least in part on the comparison of the modulated auditory input to the modulated voice data.