Symmetric Hash Functions for Secure Fingerprint Biometric Systems

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Provided by: State Street Corporation
Topic: Security
Format: PDF
Securing biometrics databases from being compromised is an important research challenge that must be overcome in order to support widespread use of biometrics based authentication. In this paper, the authors present a novel method for securing fingerprints by hashing the fingerprint minutia and performing matching in the hash space. Their approach uses a family of symmetric hash functions and does not depend on the location of the (usually unstable) singular points (core and delta) as is the case with other methods described in the literature. It also does not assume a pre-alignment between the test and the stored fingerprint templates.
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