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Re: [openpgp] OpenPGP encryption block modes (Was: The Argon2 proposal seems incomplete (Draft 6))

Peter Gutmann <pgut001@cs.auckland.ac.nz> Wed, 03 August 2022 05:54 UTC

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From: Peter Gutmann <pgut001@cs.auckland.ac.nz>
To: Bruce Walzer <bwalzer@59.ca>, Werner Koch <wk@gnupg.org>
CC: Justus Winter <justus@sequoia-pgp.org>, "openpgp@ietf.org" <openpgp@ietf.org>
Thread-Topic: [openpgp] OpenPGP encryption block modes (Was: The Argon2 proposal seems incomplete (Draft 6))
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Date: Wed, 03 Aug 2022 05:54:09 +0000
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Archived-At: <https://mailarchive.ietf.org/arch/msg/openpgp/O_1vBvmMd10H6i38hwyB_jeWjb8>
Subject: Re: [openpgp] OpenPGP encryption block modes (Was: The Argon2 proposal seems incomplete (Draft 6))
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Bruce Walzer <bwalzer@59.ca> writes:

>[...]

Everything Bruce said, with the additional comment that GCM's, and related
modes like CCM's, main reason for existence was the patents on modes like OCB.
Now that the patents have gone away there's no reason to prefer the
incredibly brittle and significantly less efficient GCM (or CCM) over OCB.

Peter.

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