Biometric sensors keep finger on security
Biometric security with fingerprint matching involves protecting results -- a user's template, fingerprint images, a fingerprint's features, and a user's finger. The simplest design solution for a client considering finger-print matching is to embed all functions and data in tamper-resistant smart cards.
However, smart cards with a fingerprint scanner and high-powered processor for feature extraction and image processing may not be practical because of the cost of distributing the card to each user.
By D.B. Kulkarni and A. Suhas at the Linux Insider.
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