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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.
In the new system, users set up their accounts by recording a large number of words and phrases which are sent in encrypted form to a bank, for example. This forms a template that the bank uses to verify the user.
