A space to share ideas and engage in dialog around how mobility can help maximize productivity for government agencies and the citizens they serve.
Voice Biometrics For Mobile Phones
December 8, 2012 at 2:28 pm #174285
From Technology Review
The Rise of Voice Biometrics for Mobile Phones
Voice biometrics is the obvious choice for authentication over a mobile phone. And now researchers say they’ve found a way to overcome its usual limitations
With everything from banking records and health data to contacts lists and photos available through our mobile phones, the ability to securely access this data is an increasingly important concern. That’s why many phone manufactures and data holders are keen on biometric security systems that reliably identify individuals.
The question of course is which biometric system to use. Face, fingerpint and iris recognition are all topics of intense research. But the most obvious choice for a mobile phone is surely voice identification. However, this approach has been plagued with problems.
For example, people’s voices can change dramatically when they are ill or in a hurry. What’s more, it’s relatively easy to record somebody’s voice during authentication and use that to break the system. So many groups have steered away from voice biometrics.
That could be set to change. Today, RC Johnson at the University of Colorado at Colorado Springs and a couple of pals lay out a new approach to voice biometrics which they say solves these problems. The new system provides secure authentication while also preserving the privacy of the user.
December 8, 2012 at 2:31 pm #174287
Paper from RC Johnson @ University of Colorado
Title: Secure voice based authentication for mobile devices:
Vaulted Voice Verification
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 v protocol, which has recently been introduced in research literature, and then describe its limitations. We then introduce a novel adaptation and extension of the vaulted verification protocol to voice, dubbed $V^3$. Following that we show a performance evaluation and then conclude with a discussion of security and future work.
This paper addresses the question Can voice be used in a remote verication protocol that also preserves privacy?” This paper shows that yes it can.
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