[128150] in cryptography@c2.net mail archive
=?WINDOWS-1252?Q?Re:_=93A_Practical_Attack_on_the_MIFARE_Classic?=
daemon@ATHENA.MIT.EDU (Karsten Nohl)
Tue Jul 15 16:11:57 2008
From: Karsten Nohl <honk98@web.de>
To: cryptography@metzdowd.com
In-Reply-To: <87mykjxk4i.fsf@snark.cb.piermont.com>
Date: Tue, 15 Jul 2008 20:10:03 +0200
On Jul 15, 2008, at 5:06 PM, Perry E. Metzger wrote:
> Although the paper seems to be gone from Wikileaks, it is on cryptome:
>
> http://cryptome.org/mifare-classic.pdf
This is a paper published on arXiv in March that does not contain the
type of information NXP is suing over, which is why it was removed
from Wikileaks.
The law suit is about a full disclosure of the Crypto1 security system
that would allow anybody to build attack tools. However, as we all
know, It would also convince more users of Mifare to consider
upgrading to more secure technologies and potentially enable
researchers to find countermeasures. The benefits clearly outweigh the
risks since half a year after announcing the vulnerabilities, Mifare
Classic is hopefully not used in any high security application anymore.
-Karsten
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