Voice Authentication System with Challenge Phrase Verification
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing authentication methods for electronic devices are unreliable when the device is shipped to a user's home or business, as they can be easily intercepted by third parties, and traditional verification methods like credit card numbers or identification cards can be compromised, especially during secure transactions or initial device activation.
Innovation Solution
A voice authentication system that prompts users to say a challenge phrase from a list of predetermined phrases, comparing the user's response with a prerecorded version, with the user's recordings associated with a specific device's electronic identification, and using multiple phrases to thwart fraudulent recordings, ensuring only the proper user can authenticate sessions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional authentication methods (credit card numbers, passwords, identification cards) are used, then the authentication process is simple to implement, but the security and reliability are compromised as these methods can be easily intercepted or stolen by third parties
Solution Approach 1:
The patent replaces traditional mechanical authentication methods (physical cards, written passwords) with voice-based biometric authentication. The system captures and analyzes voice characteristics through acoustic signals, substituting physical authentication artifacts with physiological biometric data that is inherently harder to replicate or intercept.
Solution Approach 2:
The system transforms authentication from verifying static information (passwords, card numbers) to verifying dynamic physiological parameters (voice characteristics, speech patterns, acoustic properties). This parameter change from static to dynamic biometric data significantly improves authentication reliability while maintaining operational simplicity.
2Reliability
If voice authentication with multiple phrases is used, then fraudulent authentication is thwarted, but the authentication process becomes more complex
Solution Approach 1:
The system implements dynamic authentication by selecting challenge phrases randomly from a pool and requiring users to respond with spontaneous speech. This dynamic approach prevents static recording attacks while the automated voice recognition system handles the complexity, maintaining ease of operation for the user.
Solution Approach 2:
The patent introduces an automated voice recognition system as an intermediary that manages the complexity of multi-phrase authentication. The system handles phrase selection, voice capture, analysis, and comparison automatically, shielding the user from complexity while maintaining high security through multiple challenge-response iterations.
3Reliability
If voice recordings are associated with specific device identifiers, then device-specific authentication is achieved, but the system complexity increases
Solution Approach 1:
The patent segments the authentication system into distinct functional modules: voice capture module, voice analysis module, device identification module, and matching module. Each module handles a specific aspect of authentication, making the overall complex system manageable through modular design while achieving reliable device-user binding.
Solution Approach 2:
The system creates a digital copy or template of the user's voice characteristics during enrollment and stores it associated with the device identifier. This voiceprint template serves as a reusable reference for future authentication attempts, simplifying the verification process while maintaining secure device-specific binding.
Data Source
AI summary
A user's voice is authenticated by prompting a user to say a challenge phrase from a list of predetermined phrases and comparing the user's response with a prerecorded version of the same response. The user's stored recordings are associated with an electronic identification or serial number for a specific device, so that when communication is established using the device, only the specific user may authenticate the session. When several phrases and recordings are used, one may be selected at random for authentication so that fraudulent authentication using a recording of the user's voice may be thwarted. The system and method may be used for authenticating a device when it is first activated, such as a telephony device, or may be used when authenticating a specific communications session.