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Date: Sun, 08 May 2011 22:37:15 +0200
From: magnum <rawsmooth@...dband.net>
To: john-dev@...ts.openwall.com
Subject: Re: Help! mskrb5 64-32-bit builds crashing hard while
 native builds does not?

On 2011-05-08 17:01, magnum wrote:
> I have a weird problem. My mskrb5 format works fine on 64-bit and
> 32-bit, but not when building a 64-32 target and running it on 64-bit.
>
> It smashes the stack. When I trace it, everything is fine until I call
> RC4_set_key() the first time, after that stack is crap (I can't step
> inside RC4_set_key, maybe I should look for a debug version of the lib)

It gets weirder. I commented the RC4 stuff out, problem disappeared but 
obviously the self test fail (no kidding). Then I replaced the OpenSSL 
calls with some unknown (slow) code I found on the 'net. The problem is 
gone and all is fine (except performance, and unknown licensing).

What conclusions should I draw? I just happened to hide a problem in my 
code that is still there? It's simple code. I have checked it a hundred 
times. This drives me mad!

magnum

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