Date: Tue, 28 Sep 2021 15:11:28 +0200 From: Solar Designer <solar@...nwall.com> To: Ben Calegari <bencalegari@...il.com> Cc: john-users@...ts.openwall.com Subject: Re: Cracking CSR Private Key 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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