Voiceprint Authentication Using Dynamic Text Extraction
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Solution Overview
Problem
Existing voiceprint recognition-based identity authentication methods are vulnerable to security hazards as they require pre-set text information to be disclosed, allowing potential unauthorized access by recording and playing back voice files.
Innovation Solution
A method and system that acquire historical voice files from user interactions, perform filtering and text recognition to generate reference voiceprint information, which includes both voice and text data, stored with a unique identifier, allowing for secure and accurate authentication by comparing unknown voice information against randomly selected reference voiceprint data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If pre-set text information is disclosed for voiceprint authentication, then the authentication process can be completed, but security vulnerabilities arise allowing unauthorized access through voice file recording and playback
Solution Approach 1:
The system performs text recognition on historical voice files during the voiceprint library establishment phase, before authentication occurs. This preliminary extraction of text information from actual user speech eliminates the need to pre-disclose authentication text, as the text is dynamically obtained from recorded conversations rather than being predetermined and exposed to users
Solution Approach 2:
Instead of using pre-set text information that could be recorded and replayed, the system captures and processes actual voice data from historical communications. The text information is copied from genuine user speech patterns in real conversations, creating authentic voiceprint references that cannot be replicated by simple voice file playback attacks
2Reliability
If historical voice files are processed to extract text information dynamically, then authentication security is improved, but system complexity increases due to additional processing steps
Solution Approach 1:
The system utilizes existing historical voice files from user communications that are already stored in the platform. By processing these pre-existing files through text recognition, the system generates authentication data without requiring separate recording sessions or additional user interactions, making the security enhancement self-sufficient and eliminating the need for complex additional hardware or user-facing components
Data Source
AI summary
A method for generating voiceprint information is provided. The method includes acquiring a historical voice file generated by a call between a first user and a second user; executing text recognition processing on the voice information to obtain text information corresponding to the voice information; and storing the voice information and the corresponding text information as reference voiceprint information of the first user, and storing an identifier of the first user. Furthermore each voiceprint information comprises a plurality of pieces of reference voiceprint information, each of which is sufficient to authenticate a user.