Re: [Cfrg] Chopping out curves
Watson Ladd <watsonbladd@gmail.com> Fri, 17 January 2014 19:23 UTC
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Date: Fri, 17 Jan 2014 11:23:30 -0800
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From: Watson Ladd <watsonbladd@gmail.com>
To: Manuel Pégourié-Gonnard <mpg@elzevir.fr>
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Cc: "cfrg@irtf.org" <cfrg@irtf.org>
Subject: Re: [Cfrg] Chopping out curves
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On Fri, Jan 17, 2014 at 11:17 AM, Manuel Pégourié-Gonnard <mpg@elzevir.fr> wrote: > On 17/01/2014 20:01, Watson Ladd wrote: >> Okay. I'll follow the Ed25519 paper and call it te25519 and add the >> paper as a reference. >> Are rationals fine, or do people want me to write big numbers? > > I'm sorry, but I'd prefer big numbers (or best, both). Of course it's more work > for you, but it's less for the readers. And since the document will hopefully be > read more often than it is written... :) Blegh. This is going to be one ugly looking equation. 4/5 and -121665/121666 I can memorize. Can't do the same with giant numbers. Okay, time to fire up PARI and make the changes. > > Unrelated, but Alyssa wrote: >>> • But if we call it 'Ed25519', people might confuse it with the whole >>> Ed25519 signature scheme. >>> > With all the respect I have for the great work done by Bernstein on this, I find > it unfortunate that the same name is used for a curve, a particular protocol > using this curve (and often even "the" implementation), causing some confusion. I'm not sure this is correct. Bernstein's implementation today is the donna implementation, and tweetnacl has tweetnacl implementation of cuve25519. It's no worse than BLAS, where ATLAS, gotoBLAS, netlib BLAS, and Intel all provide implementations of BLAS. > I'll be really glad if the I{R,E}TF encourages more distinct names for curves > and protocols (and of course, many distinct interoperable implementations as usual). ECDH on curve XXXX seems to be what people do when disambiguation is required. > > Manuel. > _______________________________________________ > Cfrg mailing list > Cfrg@irtf.org > http://www.irtf.org/mailman/listinfo/cfrg -- "Those who would give up Essential Liberty to purchase a little Temporary Safety deserve neither Liberty nor Safety." -- Benjamin Franklin
- [Cfrg] Chopping out curves Watson Ladd
- Re: [Cfrg] Chopping out curves Trevor Perrin
- Re: [Cfrg] Chopping out curves Michael Hamburg
- Re: [Cfrg] Chopping out curves Dan Harkins
- Re: [Cfrg] Chopping out curves Watson Ladd
- Re: [Cfrg] Chopping out curves Michael Hamburg
- Re: [Cfrg] Chopping out curves Adam Back
- Re: [Cfrg] Chopping out curves Adam Back
- Re: [Cfrg] Chopping out curves Watson Ladd
- Re: [Cfrg] Chopping out curves Alyssa Rowan
- Re: [Cfrg] Chopping out curves David McGrew
- Re: [Cfrg] Chopping out curves Adam Back
- Re: [Cfrg] Chopping out curves Alyssa Rowan
- Re: [Cfrg] Chopping out curves Robert Ransom
- Re: [Cfrg] Chopping out curves Watson Ladd
- Re: [Cfrg] Chopping out curves Manuel Pégourié-Gonnard
- Re: [Cfrg] Chopping out curves Alyssa Rowan
- Re: [Cfrg] Chopping out curves Watson Ladd
- Re: [Cfrg] Chopping out curves Igoe, Kevin M.
- Re: [Cfrg] Chopping out curves Manuel Pégourié-Gonnard
- Re: [Cfrg] Chopping out curves Watson Ladd
- Re: [Cfrg] Chopping out curves Mike Hamburg
- Re: [Cfrg] Chopping out curves Manuel Pégourié-Gonnard
- Re: [Cfrg] Chopping out curves Jon Callas