[922] in cryptography@c2.net mail archive

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Re: DES cracking is making real progress

daemon@ATHENA.MIT.EDU (Andrew Loewenstern)
Thu May 29 19:49:42 1997

From: Andrew Loewenstern <andrew_loewenstern@il.us.swissbank.com>
Date: Thu, 29 May 97 17:53:42 -0500
To: Jyri Kaljundi <jk@stallion.ee>
Cc: Phil Karn <karn@qualcomm.com>, frantz@netcom.com, cryptography@c2.net

Jyri Kaljdni writes:
>  So what they did was probably IDEAkey=md5hash(password) so
>  they got 128-bit key from 6-digit number (should be 2^20 or
>  so).

Probably?  Not that I'm defending the Bank of Estonia, but how do you know  
that the client and server don't do a DH key exchange, or something similiar,  
and are using the 6-digit one-time password as an authenticator?  If you  
haven't looked at the source, groveled through the binary, or watched the  
traffic between the client and server then you can't say anything for sure,  
right?


andrew

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