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Date: Sun, 13 May 2012 14:41:01 +0530
From: Dhiru Kholia <dhiru.kholia@...il.com>
To: john-dev@...ts.openwall.com
Subject: Re: SSH thread-safety

On Sat, May 12, 2012 at 11:11 PM, Solar Designer <solar@...nwall.com> wrote:
> On Sun, Mar 18, 2012 at 09:02:16AM +0400, Solar Designer wrote:
>> Benchmarking: ssh [32/64]... (8xOMP) DONE
>> Raw:    795785 c/s real, 99567 c/s virtual
>
> I don't know what happened, but I am now getting much higher speeds:
>
> user@...l:~/john/magnum-jumbo/src$ ../run/john -te -fo=ssh
> Benchmarking: ssh [32/64]... (8xOMP) DONE
> Raw:    3343K c/s real, 418507 c/s virtual

On my machine (AMD X3 720), I am getting normal speeds:

$ ../run/john -format=ssh -t
Benchmarking: ssh [32/64]... DONE
Raw:	122777 c/s real, 122777 c/s virtual

However on bull development machine, I too am getting very high speeds:

$ ../run/john -format=ssh -t
Benchmarking: ssh [32/64]... DONE
Raw:    811164 c/s real, 811164 c/s virtual <=== awesome speed :-)

Also, the code on bull works correctly. I manually verified by
cracking my ssh key collection. The code is same between my and bull
machine. Nothing has changed. Very strange.

One more observation, during actual cracking the speed is quite low
compared to benchmarks,

$ ../run/john -i sample
Loaded 1 password hash (ssh [32/64])
guesses: 0  time: 0:00:00:01 0.00%  c/s: 14135  trying: berlon
guesses: 0  time: 0:00:00:03 0.00%  c/s: 15189  trying: m1c098
guesses: 0  time: 0:00:00:12 0.00%  c/s: 16039  trying: mathroom
guesses: 0  time: 0:00:04:01 0.00%  c/s: 16633  trying: hbna
guesses: 0  time: 0:00:04:01 0.00%  c/s: 16629  trying: mmul1

Any ideas what is going on?

-- 
Cheers,
Dhiru

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