Re: [TLS] Updated EdDSA in TLS drafts

Simon Josefsson <simon@josefsson.org> Tue, 09 June 2015 10:47 UTC

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Date: Tue, 9 Jun 2015 12:47:04 +0200
From: Simon Josefsson <simon@josefsson.org>
To: Ilari Liusvaara <ilari.liusvaara@elisanet.fi>
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Subject: Re: [TLS] Updated EdDSA in TLS drafts
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Den Tue, 9 Jun 2015 12:59:09 +0300
skrev Re: [TLS] Updated EdDSA in TLS drafts:

> On Tue, Jun 09, 2015 at 10:36:53AM +0200, Simon Josefsson wrote:
> > I made the NamedCurve/ECPointFormat registrations stand on their
> > own, please see updated draft here:
> > 
> > https://tools.ietf.org/html/draft-josefsson-tls-eddsa2-01
> > 
> > I'm hoping this version is a bit easier to read since everything it
> > uses is defined in the document.
> > 
> > /Simon
> 
> Eeh...
> 
> "enum { ed25519(5) } NamedCurve;"
> 
> NamedCurve 5 is already assigned to some (too weak) elliptic curve.
> 
> The currently free named groups are 0x1D-0xFF and 0x0200-FDFF (don't
> use other ones, those have special meaning, and 0xFExx is private
> use).
> 
> 
> "When included in a ServerKeyExchange or ClientKeyExchange message,"
> 
> AFAIK, SKE or CKE never carry signature keys. The signature keys are
> sent inside Certificate messages (usually as PKIX
> SubjectPublicKeyInfo, but also OpenPGP format is defined).

Should be fixed in working copy, thank you!

https://gitlab.com/jas/ietf-tls-eddsa/blob/master/draft-josefsson-tls-eddsa2.txt

/Simon