Re: [openpgp] calculating PGP signature on a public key

Clint Adams <clint@debian.org> Mon, 30 July 2012 20:59 UTC

Date: Mon, 30 Jul 2012 20:59:49 +0000
From: Clint Adams <clint@debian.org>
To: George Lind <glind98@gmail.com>
Message-ID: <20120730205949.GA24997@scru.org>
References: <CAOfLfKxJ-1=zk_Fdk8vzWCbGRB0yNrFOfgWvxA4B3Wn16yi+cQ@mail.gmail.com>
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Cc: openpgp@ietf.org
Subject: Re: [openpgp] calculating PGP signature on a public key
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On Mon, Jul 30, 2012 at 04:15:11PM -0400, George Lind wrote:
> I am trying to figure out from the RFC exactly which fields get hashed when
> calculating the public key signature.

You'll want RFC4880 §5.2.4.  If you are actually talking about a signature
over a public key, you just want the literal 0x99, the two-octet length
of the key, and the body of the key packet.

Perhaps you are conflating several different signature types into one.

> The public key including the packet header and body
> The user id including the packet header and body
> signature version
> signature type
> public key algorithm
> hashing algorithm
> length of the hashed subpackets
> all the hashed subpackets
> 
> Can anyone confirm if these are correct?

[openpgp] calculating PGP signature on a public k… George Lind
Re: [openpgp] calculating PGP signature on a publ… Clint Adams