From: Adam Back <aba@dcs.ex.ac.uk>
Date: Sun, 22 Jun 1997 16:21:05 +0800
To: fabrice@math.Princeton.EDU
Subject: Re: RC5 crack
In-Reply-To: <19970621160629.55632@math.princeton.edu>
Message-ID: <199706220804.JAA05874@server.test.net>
MIME-Version: 1.0
Content-Type: text/plain




Fabrice Planchon <fabrice@math.Princeton.EDU> writes:
> Comme disait Adam Back (aba@dcs.ex.ac.uk):
> > 
> > Been looking at the RC5 crack project.
> > 
> > http://rc5.distributed.net/ has loads of flashy graphics, stats,
> > etc. but no instructions!
> 
> seems they are in the final process of rewriting clients entirely, with
> a new protocol, etc... so they don't bother explaining how the old
> clients work. Still, I agree it sucks.
> 
> here is the best that I found on that subject in the rc5 list archive..
> 
>    rc5.exe -l -a outland.hway.net -a2 rc5proxy.distributed.net -s -k 20
>    jonass@lysator.liu.se
>      
>    -l is logging (writes to a file)
>    -a primary server to use
>    -a2 secondary server
>    -s shows status
>    -k number of blocks to buffer local. The larger number the less you
>    have to be online

The client I have which I downloaded yesterday complains most of those
arguments are illegal.  I think the DOS version and the unix versions
have different usage.

Ben Byer <root@bushing.plastic.crosslink.net> wrote:
> You want to download the "personal proxy", perproxy.  It should be
> available on the same ftp site as the client.  The proxy will buffer
> the keys and the answers for you... you just run the proxy on your
> machine, point it at rc5proxy.distributed.net, and you point your
> client at localhost.

This method works, in case any others are reading and trying this
under unix.  It's still chewing keys this morning.

Adam
-- 
Have *you* exported RSA today? --> http://www.dcs.ex.ac.uk/~aba/rsa/

print pack"C*",split/\D+/,`echo "16iII*o\U@{$/=$z;[(pop,pop,unpack"H*",<>
)]}\EsMsKsN0[lN*1lK[d2%Sa2/d0<X+d*lMLa^*lN%0]dsXx++lMlN/dsM0<J]dsJxp"|dc`