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Re: [TLS] Correction: early codepoint assignment for Curve25519, Curve448, Ed25519 and Ed448

Andrei Popov <Andrei.Popov@microsoft.com> Tue, 19 January 2016 19:00 UTC

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From: Andrei Popov <Andrei.Popov@microsoft.com>
To: David Benjamin <davidben@chromium.org>, Joseph Salowey <joe@salowey.net>, Brian Smith <brian@briansmith.org>
Thread-Topic: [TLS] Correction: early codepoint assignment for Curve25519, Curve448, Ed25519 and Ed448
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Date: Tue, 19 Jan 2016 18:59:54 +0000
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Cc: Adam Langley <agl@imperialviolet.org>, Simon Josefsson <simon@josefsson.org>, "tls@ietf.org" <tls@ietf.org>
Subject: Re: [TLS] Correction: early codepoint assignment for Curve25519, Curve448, Ed25519 and Ed448
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Yes, please allocate, esp. 25519. MS will start testing interop soon.

Cheers,

Andrei

From: TLS [mailto:tls-bounces@ietf.org] On Behalf Of David Benjamin
Sent: Tuesday, January 19, 2016 10:01 AM
To: Joseph Salowey <joe@salowey.net>; Brian Smith <brian@briansmith.org>
Cc: Adam Langley <agl@imperialviolet.org>; Simon Josefsson <simon@josefsson.org>; tls@ietf.org
Subject: Re: [TLS] Correction: early codepoint assignment for Curve25519, Curve448, Ed25519 and Ed448

BoringSSL has a pair of implementations ready (in C and in our fork of Go's TLS stack for testing). We're using the value in the TLS 1.3 draft, so 29. It's not currently enabled in any Chrome builds, but I'm expecting to change this soon.

David

On Tue, Jan 19, 2016 at 12:54 PM Joseph Salowey <joe@salowey.net<mailto:joe@salowey.net>> wrote:
Any objections to early allocation for X25519 and X448?  Are there implementers with code ready to test interop?

Thanks,

Joe

On Thu, Jan 14, 2016 at 3:22 PM, Brian Smith <brian@briansmith.org<mailto:brian@briansmith.org>> wrote:
Simon Josefsson <simon@josefsson.org<mailto:simon@josefsson.org>> wrote:
Allocating a code point for X25519 could be done and is long overdue
(first draft September 2013).  X448 is also stable.  Code points for
Ed25519 and Ed448 is more problematic since TLS authentication has
historically had interaction with PKIX certs.  I agree with Yoav's
assertion that the curve point verification issue is not big enough to
stall code point allocation.

I agree with this.

Cheers,
Brian

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