Re: [Cfrg] draft-irtf-cfrg-eddsa -- one final proposal for domain separation (context labels) for ed25519

Martin Thomson <martin.thomson@gmail.com> Wed, 11 May 2016 00:46 UTC

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Date: Wed, 11 May 2016 10:46:01 +1000
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From: Martin Thomson <martin.thomson@gmail.com>
To: Simon Josefsson <simon@josefsson.org>
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Subject: Re: [Cfrg] draft-irtf-cfrg-eddsa -- one final proposal for domain separation (context labels) for ed25519
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On 10 May 2016 at 19:16, Simon Josefsson <simon@josefsson.org> wrote:
> Just define a low-level primitive like
> Ed25519 as it is, and deal with higher-level aspects like
> cross-protocol/domain mitigators at the protocol level, or at another
> crypto primitive (ed25519ctx) which can be opt-in by the people who have
> drunk that particular Kool-Aid.

That's fine with me.  And my original intent.  I realize that this
thread appears to be an attack on the eddsa draft; I don't think that
was the intent, it certainly wasn't mine.  The confusing inconsistency
was a problem.