Geoff Lacy. Outline Definition Technology Types of biometrics Fingerprints Iris Retina Face Other...
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Transcript of Geoff Lacy. Outline Definition Technology Types of biometrics Fingerprints Iris Retina Face Other...
Geoff Lacy
Outline Definition Technology Types of biometrics
FingerprintsIrisRetinaFaceOther
○ Voice, handwriting, DNA As an SA
Definition
“Biometrics is the science and technology of measuring and analyzing biological data.”
http://searchsecurity.techtarget.com/definition/biometrics
How does Biometric tech work? Biometrics do not create a picture to
compare to. Makes use of a template.
○ Creates a template using an distinctive featuresLogin templateChallenge templateSensitivity is based on
how close to the login
template the challenge
template is.
Sensitivity False Accept Rate or False Positive Rate
the probability that the system incorrectly matches the input pattern to a non-matching template in the database.
False Reject Rate or False Negative Ratethe probability that the system fails to detect a match
between the input pattern and a matching template in the database.
Fingerprint
Most common Biometric Optical scanning and Capacitance
scanning Uses minutiae, or distinctive features.
Pros and cons of fingerprint Pros
CheapEasyWidely usedMost people are
comfortable with providing fingerprints
Can’t write down fingerprint or forget it
ConsCan be faked
MythbustersFingerprints can
be damaged
Iris The iris is the colored ring
around the pupil of every eye and no two are alike
Measures the pattern of the colors in the iris
Some ATM’s use this technology
United Arab Emirates IrisGuard's Homeland Security Border Control has been operating in the United Arab Emirates (UAE) since 2001, all customs agencies are equipped with iris scanners.
Pros and cons of Iris
ProsIris recognition is rarely
impeded by glasses or contact lenses
It can be scanned from 10cm to a few meters away.
The iris remains stable over time as long as there are no injuries and a single enrolment scan can last
The iris is an internal organ that is largely protected by damage and wear by the cornea.
ConsCan be faked
Been faked with a high definition photos of a face
The accuracy of scanners can be affected by changes in lighting
Iris scanners are significantly more expensive than some other forms of biometrics.
http://www.findbiometrics.com/iris-recognition/
Retina Retina is the back of the eye. Measures the pattern of the
veins. The idea for retinal
identification was first conceived by Dr. Carleton Simon and Dr. Isadore Goldstein and was published in the New York State Journal of Medicine in 1935. The idea was a little before its time, but once technology caught up, the concept for a retinal scanning device emerged in 1975.
Pros and cons of Retina
ProsLow occurrence of false
positivesExtremely low (almost
0%) false negative ratesHighly reliable because no
two people have the same retinal pattern
Speedy results: Identity of the subject is verified very quickly
Very difficult to fake○ Requires live tissue
ConsMeasurement accuracy can be
affected by cataracts or severe astigmatism
Not very user friendlyo Scanning procedure is
perceived by some as invasive
o Subject being scanned must be close to the camera optics
High equipment costs
Face Template created from Eigen
Faces.2-D image
A newly emerging trend, claimed to achieve improved accuracies, is three-dimensional face recognition. This technique uses 3D sensors
to capture information about the shape of a face. This information is then used to identify distinctive features on the surface of a face, such as the contour of the eye sockets, nose, and chin
Problems with Privacy People don’t seem to like being identified from
cameras.In January 2001, the city of Tampa, Florida used the
technology to scan the faces of people in crowds at the Super Bowl, comparing them with images in a database of digital mug shots. Tampa then installed cameras equipped with face recognition technology in their Ybor City nightlife district, where they have encountered opposition from people wearing masks and making obscene gestures at the cameras. In late August 2001, a member of the Jacksonville, Florida City Council proposed legislation to keep the technology out of Jacksonville.
http://epic.org/privacy/facerecognition/
Voice, Handwriting, DNA
As a System Admin If you need level three authentication.
Who you areBiometrics is supposed to increase
confidentiality and availability.○ Confidentiality is increased by securing the data
with better authentication techniques. Biometrics is realistically impossible to brute force.
○ Availability is increased because it is easier to log in with a biometric as opposed to a token card or password.
What Security level do you need? Is it within budget?