Multi-Factor Authentication via Audio Watermark Embedding
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Solution Overview
Problem
Conventional multi-factor authentication systems are expensive due to the use of multiple communication channels for exchanging authentication information, which increases deployment costs and complexity.
Innovation Solution
A method and system that encrypts and embeds authentication parameters as watermarks into an audio signal, allowing for secure multi-factor authentication over a single communication channel using speech or pre-recorded audio, enabling verification through speaker authentication at an authentication server.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple communication channels are used for exchanging authentication information, then authentication security is improved, but deployment cost and system complexity increase
Solution Approach 1:
The patent combines multiple authentication factors (biometric data, passwords, tokens) into a single audio communication channel by embedding encrypted authentication parameters as watermarks within audio signals. This merging approach maintains multi-factor authentication security while eliminating the need for multiple separate communication channels, thereby reducing system complexity and deployment costs.
Solution Approach 2:
The patent introduces audio watermarks as an intermediary mechanism to carry authentication information. The watermark technology embeds encrypted authentication parameters within audio signals, allowing multiple factors to be transmitted through a single channel without compromising security, thus resolving the contradiction between security requirements and system simplicity.
2Reliability
If multiple communication channels are used for exchanging authentication information, then authentication security is improved, but deployment cost increases
Solution Approach 1:
The patent merges multiple authentication factors into a single audio channel transmission by using watermark embedding technology. This consolidation eliminates the need for deploying multiple separate communication infrastructure channels, directly reducing deployment costs while maintaining the security benefits of multi-factor authentication.
Solution Approach 2:
The audio communication channel is designed to serve multiple functions simultaneously: it carries both the audio signal for speaker verification and embedded watermarks containing encrypted authentication parameters. This multi-functionality allows a single channel to replace multiple dedicated channels, reducing deployment costs while maintaining authentication security.
Data Source
AI summary
This disclosure relates generally to multi-factor authentication, and more particularly to method and system for multi-factor authentication. In one embodiment, the method includes receipt of an audio input at a device, and a plurality of authentication parameters from at least one of the device and a server communicably coupled to the device. The plurality of authentication parameters are encrypted to generate a plurality of encrypted authentication parameters. The plurality of encrypted authentication parameters are embedded as watermarks into the audio input to generate a watermarked audio signal. The watermarked audio signal are encrypted to generate an authentication audio signal. The authentication audio signal is transmitted to an authentication server over an audio communication channel to authenticate the access at the device.