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Date: Mon, 19 Nov 2012 07:40:39 +0100
From: magnum <>
Subject: Re: new fastssh format, please test and review

On 30 Oct, 2012, at 5:40 , Dhiru Kholia <> wrote:
> On Tue, Oct 30, 2012 at 12:23 AM, magnum <> wrote:
>> On 29 Oct, 2012, at 16:14 , Dhiru Kholia <> wrote:
>>> By using the attached fastssh format, it is possible to get > 3X
>>> speedup over existing code (speedup is currently only for AES-128-CBC
>>> encrypted keys which are default these days on many systems).
>>> For some reason, benchmarking speed is very low. Actual cracking speed
>>> is nice :-)
>> You have a similar "problem" with the Office format. The benchmark includes both AES and DES test vectors. If you comment the DES ones out, the speed will probably be accurate.
> I tried doing so. No luck.
> Maybe my verification checks are very expensive. If verification
> succeeds fully and too often (like it does in benchmarking) then the
> cracking speed might be too slow.

Try setting BENCHMARK_LENGTH to -1001 instead. This will benchmark using crippled plaintexts, (after a normal self-test) so avoids that problem.


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