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Chapter 13

Chapter 13 . Biometrics What you are http://www.hipaadvisory.com/tech/biometrics.htm. Handwritten signatures. Requires careful examination Rarely examined closely Electronic examination has high fault rates Have to use signature tablet Detects velocity etc of signature Links

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Chapter 13

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  1. Chapter 13 Biometrics What you are http://www.hipaadvisory.com/tech/biometrics.htm

  2. Handwritten signatures • Requires careful examination • Rarely examined closely • Electronic examination has high fault rates • Have to use signature tablet • Detects velocity etc of signature • Links • http://www.answers.com/topic/biometric-signature • http://www.findbiometrics.com/Pages/signature%20articles/signature_2.html • http://www.cybersign.com/

  3. Biometrics • Trade-off • False acceptance rate • Fraud (type 1) • False rejection rate • Insult (type 2) • Must balance • Often times simply used as deterrent in retail • Or as supplement

  4. Links • http://www.farpoint.com/false_ar.htm • http://www.bioid.com/sdk/docs/About_EER.htm • http://et.wcu.edu/aidc/BioWebPages/Biometrics_Technology.html • http://www.findbiometrics.com/Pages/guide3.html • http://www.speechtechmag.com/issues/3_3/cover/442-1.html

  5. Face recognition • Oldest method of all • Humans very unreliable in doing this with strangers • Yet widely used in photo IDs • Again often a simple deterrent • Electronically • Identity verification • Face in crowd

  6. Links • Manual • http://www.findarticles.com/p/articles/mi_m2405/is_3_130/ai_107124686 • http://www.apa.org/releases/facerecog.html • Electronic • http://www.face-rec.org/ • http://www.frvt.org/

  7. Fingerprints • Large player in biometric industry • Accepted in our culture for identification • Used widely in law enforcement for identification • Matching against database time consuming • Proper to use in “sweeps” • DNA replacing to some degree

  8. Links FingerPrinting • History • http://inventors.about.com/gi/dynamic/offsite.htm?site=http://onin.com/fp/fphistory.html • http://inventors.about.com/gi/dynamic/offsite.htm?site=http://www.redwop.com/minutiae.asp%3Faction=showArticle%26ID=105 • http://biometrics.cse.msu.edu/fingerprint.html • Automatic • http://www.biometritech.com/features/shen0902.htm

  9. FingerPrints • When doing “sweeps” even very small false positive rates bite you • Fingerprint impressions are “noisy” • Assumption that a method is infallible generates complacency in use • Belief that is infallible produces extreme consequences when it does

  10. Iris Codes • Advantages • Best error rates • Limited genetic influence • Very random • Disadvantages • Intrusive to obtain • Possible impersonation attacks using pictures • Iris identification article • http://www.sans.org/rr/whitepapers/authentication/1341.php

  11. Voice Recognition • Problems • Background noise • Digital reproduction from previously recorded • Imitation • Forensic Phonology • Matching voice to phone call

  12. Others • Face thermo grams • Scent • Hand geometry • Gait • DNA (spit in the device )

  13. What goes wrong • DNA high false positives, sloppy lab work • Environmental conditions • Age (in law enforcement) • Print must be “new” • Grannies finger in pickle jar • Collusions • Intentionally downgrade sample (handwritting) • Combining biometrics to get lower error rate • May increase false negatives • Anomalies in the population • Damaged fingerprints • Missing hands • Religious issues • http://www.aboutbibleprophecy.com/revelation_13_16.htm

  14. Articles • Case of false positive with fingerprints • echelon carnivore • Religious issues and biometric identification

  15. Past Articles • Carnivore echelon • http://compnetworking.about.com/od/networksecurityprivacy/l/aa071900b.htm • http://en.wikipedia.org/wiki/ECHELON • fingerprinting • http://www.freepress.org/columns/display/2/2006/1317

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