Dynamic Audio Token Authentication Against Replay Misuse
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Solution Overview
Problem
Existing systems face challenges in securely authenticating users through audio signals, as these signals are often recorded and misappropriated, necessitating a more robust multi-factor authentication mechanism.
Innovation Solution
A system generates a dynamically varying continuous audio tone, inaudible to users but detectable by recording devices, which is used in conjunction with a password for multi-factor authentication, and continuously changes frequencies to prevent unauthorized access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a static audio password is used for authentication, then the authentication process is simple and fast, but the security is compromised because recorded audio can be misappropriated
Solution Approach 1:
The patent implements dynamic audio tokens that continuously vary in frequency over time, transforming the static authentication signal into a dynamic one. The audio token's frequency changes according to a predefined pattern, making recorded audio obsolete and requiring real-time generation and verification, thus resolving the security vulnerability while maintaining operational simplicity
Solution Approach 2:
The patent changes the frequency parameter of the audio token over time according to a specific pattern. This parameter transformation ensures that the audio signal is time-sensitive and cannot be reused from recordings, enhancing security without significantly increasing system complexity
2Reliability
If a dynamically varying audio tone is used for authentication, then security against audio misappropriation is improved, but the complexity of the authentication system increases
Solution Approach 1:
The system generates audio tokens with continuously varying frequencies that follow a specific temporal pattern. This dynamic characteristic prevents recording and replay attacks while the verification process remains straightforward by comparing the received audio's frequency evolution against the expected pattern
Solution Approach 2:
The audio token employs periodic frequency variations following a predetermined pattern. This periodic structure allows the verification system to authenticate users by checking whether the received audio matches the expected frequency-time relationship, providing security without excessive complexity
3Reliability
If the audio token changes frequency continuously, then security is enhanced, but the time required for authentication may increase
Solution Approach 1:
The frequency variation pattern of the audio token is predetermined and known to both the generation and verification systems. This preliminary preparation allows the verification process to efficiently match the received audio against the expected pattern without requiring complex real-time analysis, thus maintaining fast authentication
Solution Approach 2:
The patent replaces complex mechanical or procedural authentication mechanisms with a straightforward frequency-pattern matching approach. The verification system simply compares the temporal-frequency characteristics of the received audio with the expected pattern, enabling rapid authentication while maintaining high security
Data Source
AI summary
Embodiments of the present invention provide a system for generating a real-time audio token for multi-factor audio authentication. The system is configured for determining that a user is accessing an entity resource, via a user device of the user, causing a cryptographic device associated with the user to generate and emit a dynamically varying continuous audio tone, performing authentication of the user based at least in part on the dynamically varying continuous audio tone, determining that the authentication based at least in part on the dynamically varying continuous audio tone is successful, and allowing the user to access the entity resource based on determining that the authentication based at least in part on the dynamically varying continuous audio tone is successful.