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Date: Wed, 29 Sep 2021 12:45:05 -0400
From: Ben Calegari <bencalegari@...il.com>
To: Solar Designer <solar@...nwall.com>
Cc: john-users@...ts.openwall.com
Subject: Re: Cracking CSR Private Key
>
> Maybe we need to improve openssl2john.py so that it would redirect
> people to pem2john.py (at least) when its input looks like PEM. Would
> that have helped you?
>
Yes, definitely. As a john newbie, I was expecting to find a key2john or
csr2john or something like that. Thanks for the help!
On Tue, Sep 28, 2021 at 9:11 AM Solar Designer <solar@...nwall.com> wrote:
> On Sun, Sep 26, 2021 at 02:14:40PM +0200, Solar Designer wrote:
> > On Wed, Sep 22, 2021 at 12:19:00AM -0400, Ben Calegari wrote:
> > > I'm having trouble cracking a key I created in the following way:
> > >
> > > openssl req -newkey rsa:2048 -keyout keynamehere.key -out
> csrnamehere.key
> > >
> > > I don't see a corresponding xxx2john utility to convert this sort of
> key to
> > > a hash that john can understand. Is it impossible or am I just missing
> > > something?
> >
> > The corresponding utility is pem2john.py.
>
> This works for keys generated by OpenSSL up to 1.0.2* inclusive.
> However, it turns out that we have a shortcoming preventing cracking of
> keys generated by OpenSSL 1.1+. We're tracking this issue here:
>
> https://github.com/openwall/john/issues/4834
>
> > Maybe we need to improve openssl2john.py so that it would redirect
> > people to pem2john.py (at least) when its input looks like PEM. Would
> > that have helped you?
>
> Jannik Vieten has just implemented this here:
>
> https://github.com/openwall/john/pull/4835
>
> Alexander
>
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