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Date: Mon, 14 Sep 2015 15:27:25 +0300
From: Solar Designer <solar@...nwall.com>
To: john-dev@...ts.openwall.com
Subject: Re: SHA-1 H()
On Mon, Sep 14, 2015 at 04:33:55PM +0800, Lei Zhang wrote:
> Ok, I've now introduced the ternary logic instruction to JtR, and get it to work on SDE.
Cool. Thanks!
> In case it's helpful, here're some benchmark figures of JtR running on SDE:
Yes, can you show benchmarks before/after the addition of ternary logic
instructions? And, did you fully make use of them (turning all of the
3-input basic functions of MD4/MD5/SHA-1/SHA-2 into single instructions)
or only to define vcmov() for now? You should do both, so that we also
have vcmov() available for use where it's sufficient (e.g., MD5's F and
G) and in possible future code where we might not introduce proper
ternary logic expressions right away.
> BTW, SDE runs much more smoothly than I expected. At least those formats listed above ran quite fast on it.
You mean the program's interactive response time, not the c/s rates.
The c/s rates suggest there's pure emulation with no JIT. But that's
fine for our purposes.
Alexander
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