Flaw exploited in RFID-enabled passports

David Farber <[email protected]> Mon, 30 Oct 2006 09:07:42 -0500
Newsgroups gmane.culture.people.interesting-people
Message-ID <[email protected]>

Begin forwarded message:

From: Anne & Lynn Wheeler <[email protected]>
Date: October 28, 2006 5:21:16 PM EDT
To: [email protected]
Subject: Flaw exploited in RFID-enabled passports

Flaw exploited in RFID-enabled passports
http://news.com.com/2061-10789_3-6130396.html? 
part=rss&tag=6130396&subj=news

from above:

Security researchers have released proof-of-contact code that they  
say enables an attacker to read the passport number, date of birth,  
and passport expiration date from passports with RFID tags enabled.

... snip ...

something similar could be claimed behind the switch-over from x.509  
identity certificates
to relying-party-only digital certificates in the mid-90s (i.e.  
potentially serious privacy and liability issues)
http://www.garlic.com/~lynn/subpubkey.html#rpo

and as i've pointed out repeatedly, it is trivial to then show that  
such relying-party-only digital certificates are redundant and  
superfluous.

then from three factor authentication model
http://www.garlic.com/~lynn/subintegrity.html#3factor

* something you have
* something you know
* something you are

part of the issue with something like "date of birth" is that it not  
only is a privacy issue but it may also represent a serious identity  
theft and fraud issue, in part because there is pervasive use of  
"date of birth" as part of "something you know" authentication.

if the paradigm was sanitized ... then you might at most have  
"something you have" authentication ... i.e. you assert some passport  
number which is in turn, digitally signed by some hardware token or  
other embedded chip.
http://www.garlic.com/~lynn/subpubkey.html#certless

even simpler, you have anything that asserts some sort of passport  
number. the challenger than
does real-time online lookup (using the supplied number) for photo  
along with other identifying and/or pertinent information ... and  
performs authentication based on the information just looked up. a  
person could carry their passport number in some sort of cellphone/ 
pda ... which requires some response from the owner for it to be  
transmitted (in response to a query) ... or alternatively ... as a  
barcode pasted to the back of their cellphone.

The online, real-time scenario would even eliminate the person  
needing to carry some gov. issued registered document ... just that  
they are able to provide the appropriate passport number when  
challenged (which is used to do real-time retrieval of the necessary  
registered information).
The returned real-time information reponse can be specific and  
limited to the task being performed.

One of the paradigm issues with documents/certificates issued for  
purely offline operation ... is a tendency to try and make them  
(more) useful for multiple purposes ... which then leads to them  
being overloaded with lots of different information for the multiple  
purposes. Many times there is real danger that the available  
aggregate information is far in excess of what is needed for any  
specific task/process. However, it is poor human factors to burden an  
individual with large set of different documents/certificates that  
would be exactly specific for any single operation.

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