Philips/NXP/Mifare CRYPTO1 mostly reverse-engineered

Henryk Plötz henryk at ploetzli.ch
Tue Jan 15 08:47:58 EST 2008


Moin,

Am Tue, 15 Jan 2008 12:28:37 +0000 schrieb Steven J. Murdoch:

> There is some confusion on the cryptography mailing list over whether
> the Crypto1 encryption algorithm which you reverse engineered is the
> same as the Hitag 2 one. NXP don't help things by branding both as
> Mifare.
> 
>  http://www.mail-archive.com/cryptography@metzdowd.com/msg08478.html
> 
> It would help to clarify things if you sent a mail to that list saying
> whether or not the code mentioned in the above email is equivalent to
> Crypto1.

No it's not.
http://cryptanalysis.eu/blog/2007/12/29/mifare-crypto1/#comment-391

Karsten also said that though Hitag2 similar in structure to Crypto1,
the former is less complex, and may be a predecessor or something.

-- 
Henryk Plötz
Grüße aus Berlin
~~ Help Microsoft fight software piracy: Give Linux to a friend today! ~
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