Biometric Authentication

Biometric Authentication is a type of User Authentication with factors in the Inherence category: "Something the user is". Out of the three authentication factor categories, it is considered to be the most difficult to forge. It is also a major area of current research.

High-security environments have been using biometric authentication for many years. Apple's recent addition of TouchID fingerprint recognition on the iPhone has taken biometrics mainstream. Now millions of users have a biometric authentication device right in their pocket. It has been reported that Apple is planning to add TouchID to laptops soon. Third-parties can use the iPhone's TouchID as user authentication. For example,'s iPhone application uses it to authorize purchases.

The most commonly used and researched biometric factors used for authentication are:

  • Fingerprints
  • Retina/Iris scan
  • Facial recognition
  • Voice matching
  • DNA
  • Body geometry
  • Gait analysis
  • Vein matching
  • Cranial resonance
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