Recently, facial recognition has been touted as a possible method for, say, iden

Question

Recently, facial recognition has been touted as a possible method for, say, identifying terrorists in airports. As mentioned in the text, facial recognition is used by Las Vegas casinos in an attempt to detect cheaters. Note that in both of these cases the biometric is being used for identification (not authentication), presumably with uncooperative subjects.

a. Discuss an attack on facial recognition when used by a casino to detect cheaters.

b. Discuss a countermeasure that casinos might employ to reduce the effectiveness of your attack in part a.

c. Discuss a counter-countermeasure that attackers might employ to reduce the effectiveness of your countermeasure in b.

Explanation / Answer

Facial Recognition works based on multiple pattern recognition categories. In this scenario, the attackers used to confuse the recognition methods by wearing glasses or a hat or some makeup on their face.

b. The main reason was the lack of accurate pattern recognition. To be more accurate, the system should be properly trained. The training data set should be more. The additional details can be obtained by putting more cameras to scan the face. This information should be updated in the database and should be used as training data samples. Advanced facial recongition algorithms like Iris-Scanning can be used. It first scans an eye and verifies the pupil contracts before performing iris scan.

c. The attackers can wear sunglasses so that eyes would be covered up. The Iris Scan cannot proceed further since the first step involved is the iris scan.

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