[RC5] Cracking 40 bits in realtime

Christopher Hodson (Consultant) cmh at fpk.hp.com
Thu Jan 8 16:19:14 EST 1998


gindrup at okway.okstate.edu wrote:
> 
>      Anyone making a serious attack on a message already _does_ know
>      something about what it contains.

I agree entirely, however, just because you know that there is a credit
card number 10 bytes in does NOT mean you can otimize a client as much
as bovine has done.  It would take much longer in practice.

I'm just playing devil's advocate here.
--
Christopher M. Hodson
System Admin (Consultant)
Hewlett Packard Engineering Services Group
cmh at fpk.hp.com
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