Fingerprint Modality

Techniques:

  • Recognize a 2D or 3D image of the subject's fingerprint.
  • Analyze the geometry of:
    • - arch
    • - loop
    • - whorl
    • - Δ
    • - island
  • Segmentation
  • Normalize Ridge

    Recognition Algorithms

  • Eliminate ridge orientation errors using STFT & gradient method
  • Shrinking & Expanding Method (CNN)
  • hidden Markov model

    Vulnerability Flaws

  • Fingerprints can be stolen from selfie (with peace sign)
  • Low resolution fingerprint can up-pixel using CNN
  • Gradient-based reconstruction method
  • Kücken Model & Shipman's Model can be used to compute fingerprints
  • Touch Free Fingerprint Sensing can be scanned up to two meters away
  • fingerprint database bypass

    Vulnerability: Extremely High

  • Apple iPhone 5s TouchID

    • Investment: 356 million usd, July 2012

    • Launch Date:      September, 20, 2013
    • 1st Spoof Date: September, 21, 2013, 22:04:00 (EUT)

  • Samsung S5 Launch Date: April 11, 2014
  • 1st Spoof Date:                     April 15, 2014

    Identity Fraud

  • 5.6 million fingerprints were stolen from US government, 2014