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Re: [openpgp] Fingerprints

Derek Atkins <derek@ihtfp.com> Mon, 20 April 2015 15:35 UTC

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From: Derek Atkins <derek@ihtfp.com>
To: Christoph Anton Mitterer <calestyo@scientia.net>
References: <CAMm+LwhbB+-MnGRBCvprgAGOuu+5CJ2rgod7EBGOQR5UNVrspQ@mail.gmail.com> <87d232lkb6.fsf@alice.fifthhorseman.net> <sjmlhhmakxp.fsf@securerf.ihtfp.org> <1429543533.24823.73.camel@scientia.net>
Date: Mon, 20 Apr 2015 11:35:06 -0400
In-Reply-To: <1429543533.24823.73.camel@scientia.net> (Christoph Anton Mitterer's message of "Mon, 20 Apr 2015 17:25:33 +0200")
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Subject: Re: [openpgp] Fingerprints
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Christoph Anton Mitterer <calestyo@scientia.net> writes:

> On Mon, 2015-04-20 at 11:17 -0400, Derek Atkins wrote: 
>> >  * what material gets digested; at a minmum, this is:
>> >     - the algorithm for the key (incl. any parameters)
>> >     - public key values (mpi's, bitstrings)
>> >       it's not clear to me that there is any advantage to adding
>> >       anything else here.
>> 
>> I still believe that the creation time (and key expiration time, if it
>> exists) should be included.
>
> I think the same accounts for the key usage flags. Or actually, we
> should perhaps make primary keys to be generally certifying-only keys.

I generally agree with this, modulo what I have written in
draft-atkins-openpgp-device-certificates that allows encryption-only
primary keys.

> And specifying a expiration time (even if it's 0) should be mandatory.
>
> Cheers.

-derek
-- 
       Derek Atkins                 617-623-3745
       derek@ihtfp.com             www.ihtfp.com
       Computer and Internet Security Consultant

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