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Re: [openpgp] OpenPGP private certification

Werner Koch <wk@gnupg.org> Wed, 08 April 2015 10:56 UTC

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From: Werner Koch <wk@gnupg.org>
To: Phillip Hallam-Baker <phill@hallambaker.com>
References: <CAA7UWsUz65C0GAQo8Yf7ZOeT9BYy+NLV5pbbPg+Ok0-72ca1eA@mail.gmail.com> <1426721882.4249.72.camel@scientia.net> <5510578A.80304@iang.org> <1427140788.10191.75.camel@scientia.net> <5510B7CF.8060308@iang.org> <1427168189.10191.241.camel@scientia.net> <5511FE82.6010807@iang.org> <1427243451.10191.375.camel@scientia.net> <5512F137.80702@iang.org> <CAHBU6isgirHnx+gHP+OiHuvhzD+1OTCShCHEkhWcqEmUn9qnzQ@mail.gmail.com> <CAMm+LwiXKf1DvgbHaZoJnKdCVbak-jderv6Z8KDs9xPEbUuYQQ@mail.gmail.com> <1427343948.23692.14.camel@scientia.net> <CAMm+Lwi5bVTujuazTXw7oRty7n5RtsObEfNrJzmbtPiOb-X25g@mail.gmail.com> <m27fu3fsom.fsf@usma1mc-0csx92.kendall.corp.akamai.com> <CAMm+LwjBuZfP4NwRCy23_d9eRtcfUiLKdyZOu+jYT72HfB0g9g@mail.gmail.com> <87vbhlt8tg.fsf@alice.fifthhorseman.net> <CAMm+Lwjo5eyCHNahqWcwUBoaevCw2s3WAeq-2=maW=JEpCFWxA@mail.gmail.com> <sjmvbheioxv.fsf@securerf.ihtfp.org> <CAMm+Lwi4zsnQoX0R0CRbmDceLKi8B3ipHnBvSqNgo8FA8UYh3w@mail.gmail.com>
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Date: Wed, 08 Apr 2015 12:53:28 +0200
In-Reply-To: <CAMm+Lwi4zsnQoX0R0CRbmDceLKi8B3ipHnBvSqNgo8FA8UYh3w@mail.gmail.com> (Phillip Hallam-Baker's message of "Thu, 2 Apr 2015 12:09:44 -0400")
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Cc: Christoph Anton Mitterer <calestyo@scientia.net>, Brian Sniffen <bsniffen@akamai.com>, Derek Atkins <derek@ihtfp.com>, Daniel Kahn Gillmor <dkg@fifthhorseman.net>, IETF OpenPGP <openpgp@ietf.org>
Subject: Re: [openpgp] OpenPGP private certification
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On Thu,  2 Apr 2015 18:09, phill@hallambaker.com said:

> Since the key servers won't allow me to revoke the cert for the
> private key I have no control over, I think that it would be more

They allow that but you need to have a key prepared for this:

 5.2.3.15.  Revocation Key

   (1 octet of class, 1 octet of public-key algorithm ID, 20 octets of
   fingerprint)

   Authorizes the specified key to issue revocation signatures for this
   key.  Class octet must have bit 0x80 set.  If the bit 0x40 is set,
   then this means that the revocation information is sensitive.  Other
   bits are for future expansion to other kinds of authorizations.  This
   is found on a self-signature.

("gpg --edit-key, addrevoker" to set such a key and "gpg --desig-revoke"
 to issue a revocation)


Shalom-Salam,

   Werner

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