Dynamic Acoustic Authentication Using Evolving Voice Patterns
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Solution Overview
Problem
Existing authentication methods using static security information, such as acoustic signals or biometric features, are vulnerable to copying and hacking, as they rely on predefined patterns that can be easily replicated, leading to security breaches.
Innovation Solution
A method combining fixed and dynamic security information for authentication, where dynamic security information is constantly changing and unpredictable, making it difficult for attackers to determine or replicate, using a combination of acoustic and biometric features that evolve based on local or central factors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If static security information (acoustic signals or biometric features) is used for authentication, then the authentication process is simple and easy to implement, but the security level is low because the predefined patterns can be easily copied and replicated
Solution Approach 1:
The patent transforms static security information into dynamic security information by continuously changing acoustic signals that are generated and transmitted in real-time during authentication. The acoustic signals are modulated with dynamic parameters such as frequency, amplitude, and timing variations that prevent copying while maintaining ease of authentication through automated voice-based verification
2Reliability
If dynamic security information is used for authentication, then the security level is significantly enhanced, but the complexity of the authentication system increases
Solution Approach 1:
The system uses the user's own voice characteristics and acoustic properties as the source of dynamic security information. The authentication device generates acoustic signals that are naturally modulated by the user's voice, eliminating the need for complex external key management systems while providing high security through unique, changing acoustic patterns for each user
3Ease of manufacture
If acoustic signals are transmitted via voice channel for key exchange, then the transmission method is simple and uses existing communication infrastructure, but the security information can be easily compromised by hackers
Solution Approach 1:
The patent changes the parameters of acoustic signals by modulating frequency, amplitude, and temporal characteristics during transmission through the voice channel. These dynamic parameter changes ensure that even though the transmission medium remains simple (voice channel), the security is enhanced because the actual security information is embedded in continuously varying signal parameters that cannot be captured or replicated by traditional recording methods
Data Source
Figure 1A~1C
Figure 2A
Figure 2B
AI summary
The invention relates to a method for identifying or authenticating a person and/or an object using an authentication device, comprising one or more pieces of security information which consist of at least one piece of security information known to the authentication device and at least one piece of modifiable dynamic security information. The person and/or the object is/are then positively authenticated if the transmitted piece of known security information matches the piece of security information stored in the storage means and if the transmitted piece of dynamic security information has at least partly changed since the last request time relative to the piece of security information stored in the storage means.