Re: [TLS] Updated EdDSA in TLS drafts

Simon Josefsson <simon@josefsson.org> Tue, 16 June 2015 10:02 UTC

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From: Simon Josefsson <simon@josefsson.org>
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Date: Tue, 16 Jun 2015 12:02:30 +0200
In-Reply-To: <87oakpjn16.fsf@latte.josefsson.org> (Simon Josefsson's message of "Tue, 09 Jun 2015 10:36:53 +0200")
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Subject: Re: [TLS] Updated EdDSA in TLS drafts
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Hi.  The discussion about Curve25519 and ECPointFormat made me realize
that the same appears to apply to Ed25519.  So I have removed the
ECPointFormat registration and let the document say "use uncompressed".
Here is an updated document:

https://tools.ietf.org/html/draft-josefsson-tls-eddsa2-02

Anyone disagreeing with this, and would like to see an EdDSA
ECPointFormat for some reason?  Why?

Come to think of it, maybe the SignatureAlgorithm registration for eddsa
is unnecessary too, and we can overload the ecdsa value.  The NamedCurve
value "ed25519" should signal support for EdDSA anyway.

More review whether the draft would actually work for different TLS
versions (1.3 included) is appreciated.

/Simon