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Biometrics What are biometrics? What is a biometric? “Biometrics are automated methods of recognizing a person based on a physiological or behavioral characteristic” (FindBiometrics). Typical physiological biometrics include: • Fingerprints • Hand or palm geometry • Retina, iris • Facial characteristics (Liu & Silverman). Common behavioral biometrics include: • Signature • Voice • Keystroke pattern and gait (Liu & Silverman). Basic areas of application There are two basic applications of biometric technology: 1) Positive identification: To demonstrate I am someone enrolled in the system. 2) Negative identification: To demonstrate I am not someone enrolled in the system. For positive identification, the user will generally claim an identity by giving a name or an ID number, then submit a biometric measure. That measure is compared to the previously submitted measure to verify that the current user is the