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Date: Wed, 31 Oct 2012 20:12:07 +0530
From: Dhiru Kholia <dhiru.kholia@...il.com>
To: john-dev@...ts.openwall.com
Subject: Re: new fastssh format, please test and review
On Mon, Oct 29, 2012 at 8:44 PM, Dhiru Kholia <dhiru.kholia@...il.com> 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).
I have now also accelerated cracking of keys which use 3DES encryption
(using same trick as used in AES).
Initial benchmarks were a bit conservative, new figures,
> 5X speedup for keys using 3DES encryption
> 4X speedup for keys using AES-128 encryption
(OMP results on AMD X3 720)
So far, I haven't been able to find false positives (although they can
occur) using the attached code.
It also cracks all CMIYC and ssh-key-collection.tar.bz2 files with no problems.
--
Cheers,
Dhiru
View attachment "fastssh_fmt_plug.c" of type "text/x-csrc" (20460 bytes)
Download attachment "fastssh2john.py" of type "application/octet-stream" (27032 bytes)
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