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Date: Fri, 30 May 2014 23:33:31 -0400
From: <jfoug@....net>
To: john-dev@...ts.openwall.com
Subject: Re: How to test S/KEY format?
$ ../run/john -test -format=skey
Benchmarking: skey, S/Key [MD4/MD5/SHA1/RMD160 32/32]... DONE
Raw: 36755 c/s real, 36530 c/s virtual
I will get this into jumbo. I wrote SKEY_jtr_plug.c and put all the skey code into there. That file is only 136 lines long, including handling all 4 types, and with comments ;) The SKEY was very trivial code.
My code is FAR from optimal, but it works :) It took about an hour or 2, once I got the algorithm trimmed down, and a MD5 example done and working. Then hooking it into what SKEY_fmt.c expected was trivial. I will also be renaming the SKEY_fmt.c into SKEY_fmt_plug.c since now there is no requirement for -lskey to be there. IF the library IS found, john will link against it, and SKEY_jtr_plug.c will compile to a 0 byte .o file. But if that lib is not there, then SKEY_jtr_plug.c will do the work that -lskey was doing.
It should be in bleeding jumbo within the hour.
Jim.
---- Frank Dittrich <frank.dittrich@...lbox.org> wrote:
> So far, I've not been able to find out which library to install to make
> S/KEY format work on my Linux system.
> All I seem to find are references to FreeBSD's SKEY man pages.
>
> Is anybody else able to build a john version with S/KEY support?
> If not on a Linux system, then may be on a BSD system?
> If S/Key format can be used on a Linux system, should the required
> software be installed on bull?
>
> Most of that code seems to be several years old, and probably hasn't
> been tested at all for quite some time.
>
> Frank
>
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