Re: [openpgp] Proposal to include AEAD OCB mode to 4880bis
Derek Atkins <derek@ihtfp.com> Mon, 30 October 2017 15:17 UTC
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From: Derek Atkins <derek@ihtfp.com>
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> <alpine.LRH.2.21.1710251219190.18006@bofh.nohats.ca>
Date: Mon, 30 Oct 2017 11:16:15 -0400
In-Reply-To: <alpine.LRH.2.21.1710251219190.18006@bofh.nohats.ca> (Paul Wouters's message of "Wed, 25 Oct 2017 12:27:30 -0400 (EDT)")
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Subject: Re: [openpgp] Proposal to include AEAD OCB mode to 4880bis
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Paul Wouters <paul@nohats.ca> writes: > On Wed, 25 Oct 2017, Ronald Tse wrote: > >> Since bis-02 now formally defines the AEAD packet and an AEAD >> algorithm registry, I’d like to bring up the topic again of >> adding OCB to the draft given its clear benefits. There have been >> previous mentions of patent concerns, but OCB is freely >> licensed for open source tools and has been included in libraries >> like OpenSSL and Botan. > > What is the advantage of adding more and more algorithms and variants? Different requirements in different use-cases. > If OCB is clearly a winner over another algorithm candidate to be added, > is the inferior other candidate removed? Not necessarily. Just because one is a "winner" does not necessarily mean the other is "inferior". Again, different use-cases have different requirements that could result in different preferred choices. > Adding algorithms is easy. Removing them is hard. That should raise the > bar for adding new ones. Historically the OpenPGP group has been relatively inviting and open to addition (non-mandatory) algorithms. I see no reason today that this decades-old practice be changed. > Paul -derek -- Derek Atkins 617-623-3745 derek@ihtfp.com www.ihtfp.com Computer and Internet Security Consultant
- [openpgp] Proposal to include AEAD OCB mode to 48… Ronald Tse
- Re: [openpgp] Proposal to include AEAD OCB mode t… Werner Koch
- Re: [openpgp] Proposal to include AEAD OCB mode t… Paul Wouters
- Re: [openpgp] Proposal to include AEAD OCB mode t… Rick van Rein
- Re: [openpgp] Proposal to include AEAD OCB mode t… Peter Gutmann
- Re: [openpgp] Proposal to include AEAD OCB mode t… Ronald Tse
- Re: [openpgp] Proposal to include AEAD OCB mode t… Ronald Tse
- Re: [openpgp] Proposal to include AEAD OCB mode t… brian m. carlson
- Re: [openpgp] Proposal to include AEAD OCB mode t… Paul Wouters
- Re: [openpgp] Proposal to include AEAD OCB mode t… Werner Koch
- Re: [openpgp] Proposal to include AEAD OCB mode t… Peter Gutmann
- Re: [openpgp] Proposal to include AEAD OCB mode t… Ronald Tse
- Re: [openpgp] Proposal to include AEAD OCB mode t… Hanno Böck
- Re: [openpgp] Proposal to include AEAD OCB mode t… Werner Koch
- Re: [openpgp] Proposal to include AEAD OCB mode t… Werner Koch
- Re: [openpgp] Proposal to include AEAD OCB mode t… Ronald Tse
- Re: [openpgp] Proposal to include AEAD OCB mode t… brian m. carlson
- Re: [openpgp] Proposal to include AEAD OCB mode t… Ronald Tse
- Re: [openpgp] Proposal to include AEAD OCB mode t… Paul Wouters
- Re: [openpgp] Proposal to include AEAD OCB mode t… Derek Atkins
- Re: [openpgp] Proposal to include AEAD OCB mode t… Derek Atkins
- Re: [openpgp] Proposal to include AEAD OCB mode t… Derek Atkins
- Re: [openpgp] Proposal to include AEAD OCB mode t… Rick van Rein
- Re: [openpgp] Proposal to include AEAD OCB mode t… Paul Wouters
- Re: [openpgp] Proposal to include AEAD OCB mode t… Derek Atkins
- Re: [openpgp] Proposal to include AEAD OCB mode t… Paul Wouters
- Re: [openpgp] Proposal to include AEAD OCB mode t… Derek Atkins
- Re: [openpgp] Proposal to include AEAD OCB mode t… Paul Wouters
- Re: [openpgp] Proposal to include AEAD OCB mode t… Derek Atkins
- Re: [openpgp] Proposal to include AEAD OCB mode t… Ronald Tse
- Re: [openpgp] Proposal to include AEAD OCB mode t… Gregory Maxwell
- Re: [openpgp] Proposal to include AEAD OCB mode t… Paul Wouters
- Re: [openpgp] Proposal to include AEAD OCB mode t… Ronald Tse
- Re: [openpgp] Proposal to include AEAD OCB mode t… Paul Wouters
- Re: [openpgp] Proposal to include AEAD OCB mode t… Salz, Rich
- Re: [openpgp] Proposal to include AEAD OCB mode t… Werner Koch
- Re: [openpgp] Proposal to include AEAD OCB mode t… brian m. carlson
- Re: [openpgp] Proposal to include AEAD OCB mode t… Derek Atkins
- Re: [openpgp] Proposal to include AEAD OCB mode t… brian m. carlson