METHOD FOR PREVENTING USER IDENTITY SPOOFING OR IMPERSONATION IN VOICE BIOMETRIC AUTHENTICATION SYSTEMS

摘要

A method and a system for preventing identity spoofing of a voice biometr ic authentication system by analyzing frequency domain spectrum of a first audio sample, calculating a first unique identifier and storing the first unique identifier on the system. After receiving a second audio sample, a second unique identifier is generated and compared to the first stored unique identifier. The authenticity of the second audio sample is determined.