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Date: Sat, 27 Jul 2013 18:59:38 +0400
From: Solar Designer <>
Subject: Re: Sayantan's weekly report #6

Sayantan, magnum, Lukas -

On Sat, Jul 27, 2013 at 04:25:55PM +0200, magnum wrote:
> On 27 Jul, 2013, at 14:48 , Sayantan Datta <> wrote:
> > Isn't nt-opencl same as NTLM ?
> NTLM and NTLMv2 (JtR's netntlm and netntlmv2 == ntlmv2-opencl) are challenge-response formats. You may crack the password from a sniffed C/R pair.

Now I need to clarify: my request to Sayantan to implement NTLM mask
mode on GPU was for stored NT (aka NTLM) hashes, thus the nt-opencl
format.  Not any of the C/R stuff.

I think that both stored NT hashes and the C/R protocol are sometimes
referred to as "NTLM", although indeed they're different.


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