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What is biometric authentication?

April 26, 2017authentication biometric

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What is biometric authentication?

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Authentication may take advantage of biometrics by using a biometric characteristic as identifier or as verifier. When using biometrics as an identifier, uniqueness (very low FAR) is an essential requirement especially for large user numbers. When using biometrics as a verifier, the biometric characteristic may be either viewed as a secret or as public. In the latter case, it is essential that a fake detection is provided against mechanical copies of the biometric characteristic.