Re: Philips/NXP/Mifare CRYPTO1 mostly reverse-engineered

2008-01-15 Thread Henryk Plötz 
Moin,

Am Tue, 15 Jan 2008 12:28:37 + 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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Re: Philips/NXP/Mifare CRYPTO1 mostly reverse-engineered

2008-01-02 Thread Marcos el Ruptor 
The 48-bit Philips Hitag2 algorithm has been completely reverse- 
engineered a long time ago:


http://cryptolib.com/ciphers/hitag2/

Ruptor

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Re: Philips/NXP/Mifare CRYPTO1 mostly reverse-engineered

2008-01-02 Thread markus reichelt 
* markus reichelt <[EMAIL PROTECTED]> wrote:

> * Ralf-Philipp Weinmann <[EMAIL PROTECTED]> wrote:
> 
> > My colleague Erik took photos of the slides which I put up on
> > Zooomr [0]. A video recording of the talk should be available
> > shortly and will be linked here."
> 
> preliminary link for the video:

it's now on google video:

http://video.google.com/videoplay?docid=4252367680974396650&hl=en

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Re: Philips/NXP/Mifare CRYPTO1 mostly reverse-engineered

2007-12-31 Thread markus reichelt 
* Ralf-Philipp Weinmann <[EMAIL PROTECTED]> wrote:

> My colleague Erik took photos of the slides which I put up on
> Zooomr [0]. A video recording of the talk should be available
> shortly and will be linked here."

preliminary link for the video:

http://stan.freitagsrunde.org/mirror/24c3/matroska/24c3-2378-en-mifare_security.mkv


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