It's
not easy getting people to volunteer their
fingerprints and other biometric signatures to store
in a research database.
But unless a biometrics technology vendor has that
kind of database, it's difficult to do the kind of
testing required to make sure their products really
work.
To circumvent that problem, the University
of Calgary recently opened a biometrics
technologies lab where it will use "inverse
biometrics" to conduct its research.
"Instead of doing analysis, we are doing
synthesis," said Svetlana Yanushkevish, a
University of Calgary professor and head of the
Biometrics Technologies Lab. "We generate
synthetic images, such as faces and fingerprints,
collect them in a database and then we can consider
them as live, statistical data to test biometric
devices."
Synthesis is the process of creating mathematical
models of real images. That approach helps solve the
problems posed by privacy regulations, Yanushkevish
explained.
"If some vendor of biometric devices says the
performance of the device is 100 per cent, you have to
ask how much real data they use to test their devices,
because usually it's very restricted," she
said. "You can't collect fingerprints for a
live database and if you want to test it thoroughly
and carefully you have to have a live database."
The lab, which recently bought a biometric
workstation from Oakville, Ont.-based Comnetix Inc. to
power the research, will also focus on synthetic aging
of faces, research Yanushkevich says will benefit
security personnel in banks and airports in
particular.
"You can't imagine what people can do,"
said Yanushkevich, who is co-authoring the first book
on the inverse problems of biometrics, due to be
published next year. "They can do surgery to
change their face, they can put artificial burns on
them … people are very inventive when it comes to
forgeries."
The Comnetix workstation, which is part of a
contract valued at almost $100,000, will capture and
process digital fingerprints. As well, the computer
comes with Neven Vision's facial recognition
technologies.
Steve Poelking, director of research,
infrastructure and applications at IDC
Canada, said security at national border
points is a major issue for governments, Crown
corporations, and other regulated entities. It's
essential for governments to make sure they have the
right IT systems -- as well as the proper policies and
procedures -- in place in order to transmit, correlate
and interpret disparate data and intelligence, he said
in an e-mail interview with TIG.
"IT security labs serve a valuable function in
passing and strengthening those IT security systems
before going live in the real world," said
Poelking.
According to Alan Brousseau, vice-president of
investor relations and business development for Comnetix,
the vendor typically sells its systems to law
enforcement, although it also targets the health care,
nuclear facilities, airlines, gaming and financial
services sectors as well.
Although experts predicted that biometrics would be
a routine part of life after the Sept. 11, 2001 terror
attacks, that hasn't happened. That's because the
industry is still very young and is comprised of many
small players with a lot of competing technologies,
said Brousseau.
"Governments have been hesitant to spend a lot
of money without knowing their systems are going to be
around for a while, and there have also been some
privacy concerns in Canada."
People are hesitant to offer their fingerprints
because they tend to associate biometric fingerprint
technologies with the criminal justice system, he
said, but there seems to be less concern about facial
recognition biometrics.
"They're used to getting their pictures
taken and their pictures are in databases already, so
they're not as apprehensive about undergoing facial
recognition tests," said Brousseau.
But facial and iris recognition technologies are
not as mature or accurate as fingerprint biometrics at
this point, he said.
"There is no huge iris database of criminals,
but we have big fingerprint databases we've been
developing for 100 years now."
But public sector agencies tasked with choosing
biometric technologies and vendors have to know to ask
the right questions, said Amanda Goltz, a consultant
with the New York-based International Biometric Group.
"You have to ask how many false matches there
are," she said. "How many times did it say
this was a person when it's not; how many false
rejections are there? How many times does it reject
the true and accurate person?
"A question many people forget to ask, and
that vendors may or may not volunteer, is how many
people fail to be able to enrolled; how many people
can't take part because their fingerprint can't be
scanned?
That's an important issue, because it influences
the accuracy statistic, she said.
"Maybe it works 100 per cent of the time on
the three people you managed to put in the
system."