Secure voice based authentication for mobile devices: Vaulted Voice Verification
R.C. Johnson, Walter J. Scheirer, Terrance E. Boult

TL;DR
This paper introduces V^3, a novel privacy-preserving voice authentication protocol for mobile devices that addresses voice instability and enhances biometric security.
Contribution
It extends the vaulted verification protocol to voice biometrics, improving privacy and robustness for mobile voice authentication systems.
Findings
V^3 improves privacy preservation in voice authentication
The protocol addresses voice instability issues
Performance evaluation shows promising results
Abstract
As the use of biometrics becomes more wide-spread, the privacy concerns that stem from the use of biometrics are becoming more apparent. As the usage of mobile devices grows, so does the desire to implement biometric identification into such devices. A large majority of mobile devices being used are mobile phones. While work is being done to implement different types of biometrics into mobile phones, such as photo based biometrics, voice is a more natural choice. The idea of voice as a biometric identifier has been around a long time. One of the major concerns with using voice as an identifier is the instability of voice. We have developed a protocol that addresses those instabilities and preserves privacy. This paper describes a novel protocol that allows a user to authenticate using voice on a mobile/remote device without compromising their privacy. We first discuss the \vv protocol,…
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