Silicon.com: Passports replaced by iris scanning in Amsterdam

[Owen Blacker]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Oh, OK.  I'll take your word for it  :)

That notwithstanding, a Google search of
<http://www.google.com/search?q=iris+pattern+change> came up with a few
links along the lines of <http://www.iris-ward.com/IS%20LISTS/Proof.htm> on
the subject of non immutability of the iris, and iridology
<http://www.byregion.net/glossary/iridology.html> is founded on the
principle that the iris changes.  These may be complete bunkum (or just
irrelevant to the kinds of patterns these scanners records), but I don't
know enough to make an assumption either way...  :)

Straying marginally nearer the topic, the patterns still need to be
converted to some digital format and stored (which will have a few threat
models) and reliably compared against the human version looking into the
scanner.  These are all likely to pose vulnerabilities, though they're
unlikely to be insurmountable, of course.  Iirc, Ross's book has something
about all this anyways, but I've not yet read it (it's sat on my living
room table, though, which is an improvement on last time it was mentioned 
*GRIN*) so I can't comment...  :)


O x

> -----Original Message-----
> From: David_Biggins@usermgmt.com [mailto:David_Biggins@usermgmt.com] 
> Sent: Tuesday, October 30, 2001 12:54 PM
> To: ukcrypto@chiark.greenend.org.uk
> Subject: RE: Silicon.com: Passports replaced by iris scanning 
> in Amsterdam
> 
> 
> My wife's Iris colour seems to change quite dramatically...  
> From green to hazel...
> 
> Close inspection shows that the PATTERN is not changing.  The outer edge
> of her Iris is hazel, the inner area is greener.   When dilated, it
> appears hazel,  when not dilated,  it shows green...   but the actual
> radial pattern changes little.   And Iris recognition does NOT use the
> colour, just the patterns.
> 
> ## dave ## 
> 
> 
> > -----Original Message-----
> > From: Owen Blacker [mailto:owen.blacker@wheel.co.uk]
> > Sent: Tuesday, October 30, 2001 12:26
> > To: 'ukcrypto@chiark.greenend.org.uk'
> > Subject: RE: Silicon.com: Passports replaced by iris scanning in
> > Amsterdam
> > 
> > 
> >  
> > -----BEGIN PGP SIGNED MESSAGE-----
> > Hash: SHA1
> > 
> > However, I can think of at least a couple of friends who have 
> > irises that
> > seem to change (subjectively) with their mood / circumstance 
> > / whatever. 
> > The perceived changes can be quite dramatic (usually from 
> > blue-grays to
> > piercing-bright blues.  Is this really just a change in my 
> (and other
> > people's simultaneous) ~perception~ of the iris coloring 
> and pattern,
> > rather than some actual change?
> > 
> > This is wildly off-topic, so it's prolly best replied to 
> > offlist...  :)
> > 
> > 
> > O x
> > 
> > > -----Original Message-----
> > > From: David_Biggins@usermgmt.com 
> > [mailto:David_Biggins@usermgmt.com] 
> > > Sent: Tuesday, October 30, 2001 12:18 PM
> > > To: ukcrypto@chiark.greenend.org.uk
> > > Subject: RE: Silicon.com: Passports replaced by iris scanning 
> > > in Amsterdam
> > > 
> > > 
> > > Assuming you mean Iris, not retina, I'm assured it is surprisingly
> > > little...
> > > 
> > > Such things change the dilation of the iris significantly, 
> > but not the
> > > radial patterns.
> > > 
> > > > -----Original Message-----
> > > > From: Nexus [mailto:nexus@patrol.i-way.co.uk]
> > > > Sent: Tuesday, October 30, 2001 11:28
> > > > To: ukcrypto@chiark.greenend.org.uk
> > > > Subject: Re: Silicon.com: Passports replaced by iris scanning in
> > > > Amsterdam
> > > > 
> > > > 
> > > > Personally, I'm wondering how much a persons' retina 
> pattern will
> > > > change due to say, fatigue, alchohol, medication 
> > (atropine ;-) or even
> > > > half a ton of skunk ;-)
> > > > 
> > > > > ----- Original Message -----
> > > > > From: "Owen Blacker" <owen.blacker@wheel.co.uk>
> > > > > To: "UK Crypto list" <ukcrypto@chiark.greenend.org.uk>
> > > > > Sent: Tuesday, October 30, 2001 10:24 AM
> > > > > Subject: Silicon.com: Passports replaced by iris scanning...
> > > > > 
> > > > > > HEADLINE: Passports replaced by iris scanning in Amsterdam
> > > > > > PUBLISHED: 8:59am on Tuesday 30th October 2001
> > > > > > CHANNEL: Beyond the processor
> > > > > > AUTHOR: Will Sturgeon
> > > > > > SERVICE: http://www.silicon.com
> > 
> > -----BEGIN PGP SIGNATURE-----
> > Version: PGP 7.0.4
> > Comment: Due to RIP, pls check for revocation before using this key!
> > 
> > iQA/AwUBO96bskIjmaa0joBeEQJuEwCgwt7LWqL/OHRkkkhP0nt+0MWsdVsAoOCV
> > Nm9MVRgiXMcWQ7ciJ56KhLCm
> > =K+ad
> > -----END PGP SIGNATURE-----
> > 
> > 
> _____________________________________________________________________
> > This message has been checked for all known viruses by UUNET 
> > delivered 
> > through the MessageLabs Virus Control Centre. For further 
> > information visit
> > http://www.uk.uu.net/products/security/virus/
> > 
> > 
> 
> 
> 
> _____________________________________________________________________
> This message has been checked for all known viruses by UUNET 
> delivered 
> through the MessageLabs Virus Control Centre. For further 
> information visit
> http://www.uk.uu.net/products/security/virus/
> 

-----BEGIN PGP SIGNATURE-----
Version: PGP 7.0.4
Comment: Due to RIP, pls check for revocation before using this key!

iQA/AwUBO96xdEIjmaa0joBeEQJhvQCglZAV9HavW5Lr+oNvnEatC3m7SXgAoLyw
ebdIBxQf4sO6rJWLoLkX98yI
=laIX
-----END PGP SIGNATURE-----

_____________________________________________________________________
This message has been checked for all known viruses by UUNET delivered 
through the MessageLabs Virus Control Centre. For further information visit
http://www.uk.uu.net/products/security/virus/