Re: [Cfrg] Point format endian (was: Adoption of draft-ladd-spake2 as a RG document)
"Dan Harkins" <dharkins@lounge.org> Fri, 23 January 2015 22:44 UTC
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Date: Fri, 23 Jan 2015 14:44:10 -0800
From: Dan Harkins <dharkins@lounge.org>
To: Alyssa Rowan <akr@akr.io>
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Cc: "cfrg@irtf.org" <cfrg@irtf.org>
Subject: Re: [Cfrg] Point format endian (was: Adoption of draft-ladd-spake2 as a RG document)
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On Mon, January 19, 2015 4:27 am, Alyssa Rowan wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA512 > > On 19 January 2015 11:56:27 GMT+00:00, "Dearlove, Christopher (UK)" > <chris.dearlove@baesystems.com> wrote: >> [â¦] Is the use of little endian format here a deliberate design >> decision? > > Probably yes, to match every existing implementation of Curve25519 already > in the wild (and most commonly-used architectures)? So a long-standing tradition of the on-the-wire format is changed because of the way the first curve25519 library was written? That's a weak justification. Dan. > TLS WG give new curves free reign on point format, explicitly not SEC1 > constrained. They preferred little endian (weakly) for the above reason, I > believe? > > - -- > /akr > -----BEGIN PGP SIGNATURE----- > Version: APG v1.1.1 > > iQI3BAEBCgAhBQJUvPgjGhxBbHlzc2EgUm93YW4gPGFrckBha3IuaW8+AAoJEOyE > jtkWi2t6zMYP/1zfZqPArx93uuddYNhL3FoApKh8rUmpJydhlVfAenxK7pfT7FjC > 17g2xFE5dHdA+RZEduf4YDqvQHN8DUWFe9v/pQtq/ev6Ety66CsBG1PV/sQ2hF7f > 474TKgp9S5ADndNttzD+AZx7JG1xiwvPoXp5BtY86R8tPNG+sfnOB+4Vxl9F7XPC > Cboi942fAlO4F5WxFxJhb8ZY0O9B0MDtfKZVg3SEkyZq+moGGjVwndlcBa26e5+S > iKQeyEXl1yGthSt3Pp7WGFnhu86Ul6/2cC1FmlmOTpXu8RRW3idvwF8Au5VJaJ5s > JEYRAN1FrT9U6Bdrjfs5VZHeQkhSK0jzRlnRFD2VsyBClRwmFDmuODiqJoWkiYHX > qTuZOwvyyqLFgAXgwm+uovTkIjrgKWam66G2ptAUacV3cqhiX0/VdGJIk+Hw2xTd > C95oSiIMw5vHQWuUWvCVh4s7G2kf5+nf930c3MRm4q1IdlFihvjVuLTP0uS8YMgb > 5EI/kpCEso6d3foVUTkTbLbe9rXm1AJtL9N7QJ1KdKGXtsHmhMkFjPijE1B3qvB4 > aRzjEGoVV48j3yxM68SjyV38TgqvMwzi2qmoXZGeBocynIq+jT05F+d8K3ibUCgV > 2ZrKaWIinQs4JQ5Meu3UE0IMcpBQQ0/YE/XE4Y6AUWjyde/mR6nHE+F5 > =RTzy > -----END PGP SIGNATURE----- > > _______________________________________________ > Cfrg mailing list > Cfrg@irtf.org > http://www.irtf.org/mailman/listinfo/cfrg >
- [Cfrg] Adoption of draft-ladd-spake2 as a RG docu… Alexey Melnikov
- Re: [Cfrg] Adoption of draft-ladd-spake2 as a RG … Rene Struik
- Re: [Cfrg] Adoption of draft-ladd-spake2 as a RG … Watson Ladd
- Re: [Cfrg] Adoption of draft-ladd-spake2 as a RG … Watson Ladd
- Re: [Cfrg] Adoption of draft-ladd-spake2 as a RG … David Leon Gil
- Re: [Cfrg] Adoption of draft-ladd-spake2 as a RG … Alexey Melnikov
- Re: [Cfrg] Adoption of draft-ladd-spake2 as a RG … Yoav Nir
- Re: [Cfrg] Adoption of draft-ladd-spake2 as a RG … Alexey Melnikov
- Re: [Cfrg] Adoption of draft-ladd-spake2 as a RG … Stephen Farrell
- Re: [Cfrg] Adoption of draft-ladd-spake2 as a RG … Michael Hamburg
- Re: [Cfrg] Adoption of draft-ladd-spake2 as a RG … Dan Harkins
- Re: [Cfrg] Adoption of draft-ladd-spake2 as a RG … Watson Ladd
- Re: [Cfrg] Adoption of draft-ladd-spake2 as a RG … Dan Harkins
- Re: [Cfrg] Adoption of draft-ladd-spake2 as a RG … Derek Atkins
- Re: [Cfrg] Adoption of draft-ladd-spake2 as a RG … Dan Harkins
- Re: [Cfrg] Adoption of draft-ladd-spake2 as a RG … Andy Lutomirski
- Re: [Cfrg] Adoption of draft-ladd-spake2 as a RG … Paul Lambert
- Re: [Cfrg] Adoption of draft-ladd-spake2 as a RG … Watson Ladd
- Re: [Cfrg] Adoption of draft-ladd-spake2 as a RG … Alexey Melnikov
- Re: [Cfrg] Adoption of draft-ladd-spake2 as a RG … Alexey Melnikov
- Re: [Cfrg] Adoption of draft-ladd-spake2 as a RG … Dan Harkins
- Re: [Cfrg] Adoption of draft-ladd-spake2 as a RG … Paul Lambert
- Re: [Cfrg] Adoption of draft-ladd-spake2 as a RG … Tom Yu
- Re: [Cfrg] Adoption of draft-ladd-spake2 as a RG … Andy Lutomirski
- Re: [Cfrg] Adoption of draft-ladd-spake2 as a RG … Dearlove, Christopher (UK)
- Re: [Cfrg] Point format endian (was: Adoption of … Alyssa Rowan
- Re: [Cfrg] Adoption of draft-ladd-spake2 as a RG … Alexey Melnikov
- Re: [Cfrg] Adoption of draft-ladd-spake2 as a RG … Adam Langley
- Re: [Cfrg] Adoption of draft-ladd-spake2 as a RG … Paul Lambert
- [Cfrg] On the topic of the SPAKE2 draft Paul Lambert
- Re: [Cfrg] Point format endian (was: Adoption of … Dan Harkins
- Re: [Cfrg] Point format endian (was: Adoption of … Watson Ladd
- Re: [Cfrg] Point format endian (was: Adoption of … Salz, Rich
- Re: [Cfrg] Point format endian (was: Adoption of … Dan Harkins
- Re: [Cfrg] Point format endian (was: Adoption of … Watson Ladd
- Re: [Cfrg] Point format endian (was: Adoption of … D. J. Bernstein
- Re: [Cfrg] Point format endian (was: Adoption of … Dan Harkins
- Re: [Cfrg] Point format endian (was: Adoption of … Mike Hamburg
- Re: [Cfrg] Point format endian (was: Adoption of … Salz, Rich
- Re: [Cfrg] Point format endian (was: Adoption of … Watson Ladd
- Re: [Cfrg] Point format endian (was: Adoption of … Andrey Jivsov
- Re: [Cfrg] Point format endian Alyssa Rowan
- Re: [Cfrg] Point format endian (was: Adoption of … Salz, Rich
- Re: [Cfrg] Point format endian (was: Adoption of … Damien Miller
- Re: [Cfrg] Point format endian (was: Adoption of … Dan Harkins
- Re: [Cfrg] Point format endian (was: Adoption of … Mike Hamburg
- Re: [Cfrg] Point format endian (was: Adoption of … Watson Ladd
- Re: [Cfrg] Point format endian (was: Adoption of … Yoav Nir
- Re: [Cfrg] Point format endian Michael Clark