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Re: [openpgp] Proposal to include AEAD OCB mode to 4880bis

Werner Koch <wk@gnupg.org> Fri, 27 October 2017 08:39 UTC

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From: Werner Koch <wk@gnupg.org>
To: Paul Wouters <paul@nohats.ca>
Cc: Ronald Tse <tse@ribose.com>, "openpgp@ietf.org" <openpgp@ietf.org>
References: <D0505748-E376-4CF9-8906-9AD77838FB23@ribose.com> <1508981649515.71466@cs.auckland.ac.nz> <07C9EFDF-C8C2-4433-A9F9-DC3D7AFD5499@ribose.com> <6AC83857-62D9-45DF-9DAE-928CF0E45A96@nohats.ca>
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Date: Fri, 27 Oct 2017 10:32:44 +0200
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Subject: Re: [openpgp] Proposal to include AEAD OCB mode to 4880bis
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On Fri, 27 Oct 2017 02:26, paul@nohats.ca said:

> For IETF standards, optional or mandatory to implement, it should be unencumbered and free to use.

rfc2440 and rfc4880 both included IDEA as a SHOULD algorithm despite
that IDEA was patent encumbered.  Also RSA was patent encumbered when
2440 was published and nevertheless a SHOULD algorithm.

Ronald proposed OCB as a MAY algorithm so that by the time the patent
expires it can be used.  We will anyway require a couple of years before
a new algorithm can be used.  It is up to the implementation to announce
support for certain algorithms.


Salam-Shalom,

   Werner


-- 
Die Gedanken sind frei.  Ausnahmen regelt ein Bundesgesetz.

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