Re: [Cfrg] draft-irtf-cfrg-eddsa -- one final proposal for domain separation (context labels) for ed25519
Russ Housley <housley@vigilsec.com> Wed, 20 April 2016 18:07 UTC
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From: Russ Housley <housley@vigilsec.com>
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Date: Wed, 20 Apr 2016 14:07:32 -0400
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References: <87bn543id1.fsf@alice.fifthhorseman.net> <D33CFF00.6A70D%kenny.paterson@rhul.ac.uk> <11c960b5f1fa42aaaf4cd0a6961332ec@usma1ex-dag1mb1.msg.corp.akamai.com>
To: "Salz, Rich" <rsalz@akamai.com>, Daniel Kahn Gillmor <dkg@fifthhorseman.net>
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Subject: Re: [Cfrg] draft-irtf-cfrg-eddsa -- one final proposal for domain separation (context labels) for ed25519
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On Apr 20, 2016, at 7:27 AM, Salz, Rich <rsalz@akamai.com> wrote: > This is okay with me, except for one pedantic clarification. "Empty string" has a specific meaning in C, it's a single NUL byte. Since our other uses of context including the NUL terminator, to avoid prefix attacks, then I think the wording needs some editing. +1 It would be better to say that an “empty context” consists of zero bytes (or octets if you prefer). Russ
- [Cfrg] draft-irtf-cfrg-eddsa -- one final proposa… Daniel Kahn Gillmor
- Re: [Cfrg] draft-irtf-cfrg-eddsa -- one final pro… Paterson, Kenny
- Re: [Cfrg] draft-irtf-cfrg-eddsa -- one final pro… Salz, Rich
- Re: [Cfrg] draft-irtf-cfrg-eddsa -- one final pro… Daniel Kahn Gillmor
- Re: [Cfrg] draft-irtf-cfrg-eddsa -- one final pro… Salz, Rich
- Re: [Cfrg] draft-irtf-cfrg-eddsa -- one final pro… Ilari Liusvaara
- Re: [Cfrg] draft-irtf-cfrg-eddsa -- one final pro… Daniel Kahn Gillmor
- Re: [Cfrg] draft-irtf-cfrg-eddsa -- one final pro… Russ Housley
- Re: [Cfrg] draft-irtf-cfrg-eddsa -- one final pro… Ilari Liusvaara
- Re: [Cfrg] draft-irtf-cfrg-eddsa -- one final pro… D. J. Bernstein
- Re: [Cfrg] draft-irtf-cfrg-eddsa -- one final pro… Benjamin Kaduk
- Re: [Cfrg] draft-irtf-cfrg-eddsa -- one final pro… Daniel Kahn Gillmor
- Re: [Cfrg] draft-irtf-cfrg-eddsa -- one final pro… Daniel Kahn Gillmor
- Re: [Cfrg] draft-irtf-cfrg-eddsa -- one final pro… Watson Ladd
- Re: [Cfrg] draft-irtf-cfrg-eddsa -- one final pro… Ilari Liusvaara
- Re: [Cfrg] draft-irtf-cfrg-eddsa -- one final pro… David Jacobson
- Re: [Cfrg] draft-irtf-cfrg-eddsa -- one final pro… Martin Thomson
- Re: [Cfrg] draft-irtf-cfrg-eddsa -- one final pro… Ilari Liusvaara
- Re: [Cfrg] draft-irtf-cfrg-eddsa -- one final pro… Benjamin Kaduk
- Re: [Cfrg] draft-irtf-cfrg-eddsa -- one final pro… Ilari Liusvaara
- Re: [Cfrg] draft-irtf-cfrg-eddsa -- one final pro… Daniel Kahn Gillmor
- Re: [Cfrg] draft-irtf-cfrg-eddsa -- one final pro… Benjamin Kaduk
- Re: [Cfrg] draft-irtf-cfrg-eddsa -- one final pro… Ilari Liusvaara
- Re: [Cfrg] draft-irtf-cfrg-eddsa -- one final pro… Martin Thomson
- Re: [Cfrg] draft-irtf-cfrg-eddsa -- one final pro… Ilari Liusvaara
- Re: [Cfrg] draft-irtf-cfrg-eddsa -- one final pro… Martin Thomson
- Re: [Cfrg] draft-irtf-cfrg-eddsa -- one final pro… Ilari Liusvaara
- Re: [Cfrg] draft-irtf-cfrg-eddsa -- one final pro… Daniel Kahn Gillmor
- Re: [Cfrg] draft-irtf-cfrg-eddsa -- one final pro… Ilari Liusvaara
- Re: [Cfrg] draft-irtf-cfrg-eddsa -- one final pro… Simon Josefsson
- [Cfrg] Side inputs to signature systems, take 2 D. J. Bernstein
- Re: [Cfrg] Side inputs to signature systems, take… Natanael
- Re: [Cfrg] Side inputs to signature systems, take… David Jacobson
- Re: [Cfrg] draft-irtf-cfrg-eddsa -- one final pro… Daniel Kahn Gillmor
- Re: [Cfrg] Side inputs to signature systems, take… Daniel Kahn Gillmor
- Re: [Cfrg] draft-irtf-cfrg-eddsa -- one final pro… Watson Ladd
- Re: [Cfrg] draft-irtf-cfrg-eddsa -- one final pro… Simon Josefsson
- Re: [Cfrg] draft-irtf-cfrg-eddsa -- one final pro… Ilari Liusvaara
- Re: [Cfrg] draft-irtf-cfrg-eddsa -- one final pro… Martin Thomson
- Re: [Cfrg] draft-irtf-cfrg-eddsa -- one final pro… Ilari Liusvaara
- Re: [Cfrg] draft-irtf-cfrg-eddsa -- one final pro… Benjamin Kaduk
- Re: [Cfrg] draft-irtf-cfrg-eddsa -- one final pro… Ilari Liusvaara
- Re: [Cfrg] draft-irtf-cfrg-eddsa -- one final pro… Simon Josefsson
- Re: [Cfrg] draft-irtf-cfrg-eddsa -- one final pro… Watson Ladd
- Re: [Cfrg] draft-irtf-cfrg-eddsa -- one final pro… Martin Thomson
- Re: [Cfrg] draft-irtf-cfrg-eddsa -- one final pro… Martin Thomson
- Re: [Cfrg] draft-irtf-cfrg-eddsa -- one final pro… Bryan Ford
- Re: [Cfrg] draft-irtf-cfrg-eddsa -- one final pro… Watson Ladd
- Re: [Cfrg] draft-irtf-cfrg-eddsa -- one final pro… Dang, Quynh (Fed)
- Re: [Cfrg] draft-irtf-cfrg-eddsa -- one final pro… D. J. Bernstein
- Re: [Cfrg] draft-irtf-cfrg-eddsa -- one final pro… Bryan Ford
- Re: [Cfrg] draft-irtf-cfrg-eddsa -- one final pro… Richard Outerbridge
- Re: [Cfrg] draft-irtf-cfrg-eddsa -- one final pro… D. J. Bernstein