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Re: [openpgp] signing COSE (RFC8152) artifacts with openpgp keys

Daniel Kahn Gillmor <dkg@fifthhorseman.net> Thu, 06 August 2020 13:57 UTC

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From: Daniel Kahn Gillmor <dkg@fifthhorseman.net>
To: Michael Richardson <mcr+ietf@sandelman.ca>, openpgp@ietf.org
Cc: draft-ietf-sacm-coswid@ietf.org
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Date: Thu, 06 Aug 2020 09:50:33 -0400
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Subject: Re: [openpgp] signing COSE (RFC8152) artifacts with openpgp keys
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On Thu 2020-07-30 14:52:03 -0400, Michael Richardson wrote:
> Do you think it's appropriate to use the primary key?
> Would you consider that a specific purpose subkey would be better?

I tend to think that a specific purpose subkey would be better for novel
uses, though i agree with Santiago that i'd probably expect any
signing-capable key to work -- that could be either a dedicated
signing-capable subkey, or a primary key that is marked as
signing-capable.

        --dkg

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