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Re: [openpgp] Algorithm-specific data: problems with Simple Octet Strings, and possible alternatives

Florian Weimer <fw@deneb.enyo.de> Mon, 29 March 2021 08:31 UTC

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From: Florian Weimer <fw@deneb.enyo.de>
To: Niibe Yutaka <gniibe@fsij.org>
Cc: openpgp@ietf.org, Daniel Kahn Gillmor <dkg@fifthhorseman.net>
References: <87eeg42gti.fsf@fifthhorseman.net> <87im5ebfgf.fsf@iwagami.gniibe.org> <87r1jypfbc.fsf@jumper.gniibe.org>
Date: Mon, 29 Mar 2021 10:31:52 +0200
In-Reply-To: <87r1jypfbc.fsf@jumper.gniibe.org> (Niibe Yutaka's message of "Mon, 29 Mar 2021 16:52:23 +0900")
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Subject: Re: [openpgp] Algorithm-specific data: problems with Simple Octet Strings, and possible alternatives
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* Niibe Yutaka:

> Impact to OpenPGP implementations
> =================================
>
> If it will be agreed, implementations will have to support non-zero
> removal representations in Ed25519 signature and secret.

Let me note again that zero-stripping for MPIs affects RSA as well and
makes OpenPGP inconsistent with its normative references.

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