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Message-ID: <20120527212411.GA16869@openwall.com>
Date: Mon, 28 May 2012 01:24:11 +0400
From: Solar Designer <solar@...nwall.com>
To: john-dev@...ts.openwall.com
Subject: Re: mschapv2 conversion
On Sun, May 27, 2012 at 11:08:53PM +0200, magnum wrote:
> OK, that seems to work. But as long as it breaks the normal builds, I
> can't commit it. Could you try to get it work for at least linux-x86-sse2?
>
> This might be just an arch.h issue though. Solar?
No, it'll be a bit more work. The extra function added to DES_bs_b.c
will also need to be added to the assembly files. I might get to that
in June.
> Speeds before:
> Benchmarking: MSCHAPv2 C/R MD4 DES [mschapv2]... DONE
> Many salts: 2304K c/s real, 2317K c/s virtual
> Only one salt: 1638K c/s real, 1638K c/s virtual
>
> After:
> Benchmarking: MSCHAPv2 C/R MD4 DES [mschapv2]... DONE
> Many salts: 4861K c/s real, 4861K c/s virtual
> Only one salt: 2466K c/s real, 2466K c/s virtual
Looks good to me given that MD4 has remained the same (not vectorized)
and that this is a generic build. One of the next steps (for this
format) is to switch to using sse-intrinsics.c code for MD4.
Alexander
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