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Date: Wed, 26 Sep 2012 07:40:49 +0200
From: Lukas Odzioba <>
Subject: Re: Cracking OpenPGP / GnuPG private key files with JtR

What is the status of it? ( RIPEMD and SHA2).
If still TODO maybe we should add it to 'issues' on github -> it will
be easier to track such things, because now most of them sank on
mailing list.

ocl code doesn't look good for me, probably it should be rewritten to
get better speed.

2012/8/12 Dhiru Kholia <>:
> $ ../run/john -fo:gpg -t
> Benchmarking: OpenPGP / GnuPG Secret Key [32/64]... (3xOMP) DONE
> Many salts:     190 c/s real, 65.8 c/s virtual
> Only one salt:  119 c/s real, 39.9 c/s virtual
> Currently, I don't know why "Many salts" case is faster.
> Lukas,
> The key derivation function(s) seems to be simple. If you have some
> time, can you look into OpenCL implementation of this format?
> magnum,
> This stuff is not tested heavily and hence might not be a candidate
> for jumbo-7. Your call :-)
> TODO: Add support for RIPEMD and SHA2 hashes.
> --
> Cheers,
> Dhiru

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