Tamper-Resistant Element for Speaker Recognition Data Integrity
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current speaker recognition systems, particularly those using smart cards, are limited in their ability to perform text-independent speaker verification, lack robust security measures against attacks, and require significant bandwidth and storage for handling voice prints, making them vulnerable to tampering and data integrity breaches.
Innovation Solution
A tamper-resistant element, such as a secure smart card or module, is designed to store and process speaker information securely, performing data integrity checks and spoof detection within the element to ensure the confidentiality and authenticity of voice recognition data, using algorithms like Hidden Markov Models and i-vector approaches for text-dependent and text-independent recognition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If speaker recognition data is stored outside a tamper-resistant element, then bandwidth and storage requirements increase, but security and data integrity are compromised
Solution Approach 1:
The patent extracts and stores only essential speaker recognition data (voice prints, enrollment data) within the tamper-resistant element, while keeping the system architecture simple. This selective extraction of critical data to a secure location protects data integrity without requiring complex external storage systems.
Solution Approach 2:
The tamper-resistant element acts as an intermediary between the speaker recognition system and external data sources. It verifies data integrity through checksum validation before accepting enrollment data and prevents unauthorized access to stored biometric information, thereby ensuring reliability while maintaining system simplicity.
2Reliability
If comprehensive speaker recognition processing is performed outside the tamper-resistant element, then processing speed increases, but vulnerability to tampering and attacks increases
Solution Approach 1:
The patent segments the speaker recognition system into two parts: secure verification operations performed within the tamper-resistant element and non-critical processing outside. This segmentation ensures that critical security functions (data verification, enrollment validation) are protected from attacks while non-essential operations can proceed externally.
Solution Approach 2:
The system performs preliminary data integrity verification through checksum validation before data is stored or processed further. This preliminary anti-action prevents corrupted or malicious data from entering the system, thereby maintaining security without significantly impacting overall processing speed.
3Reliability
If all speaker recognition operations are performed outside the tamper-resistant element, then system complexity is reduced, but confidentiality of biometric data is compromised
Solution Approach 1:
The patent extracts only the most critical biometric data (voice prints and enrollment information) and stores it within the tamper-resistant element. This selective extraction ensures confidentiality of sensitive biometric data while avoiding the need for complex architecture that would require moving all processing operations inside the element.
Solution Approach 2:
The tamper-resistant element provides self-service security functions including automatic verification of data integrity through checksum validation, protection of stored voice prints, and prevention of unauthorized access. This self-service capability maintains confidentiality without requiring complex external security management systems.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A tamper-resistant element for use in speaker recognition, the tamper-resistant element being adapted for storing data representing speaker information based on speaker recognition enrollment data and for checking whether information based on a speaker recognition testing signal matches the speaker information, characterized in that the tamper-resistant element is also adapted for carrying out a data integrity check, a system comprising such a tamper-resistant element and method for speaker recognition.