[jose] RFC 8037 "alg" quirkiness

Anders Rundgren <anders.rundgren.net@gmail.com> Sun, 30 August 2020 06:57 UTC

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From: Anders Rundgren <anders.rundgren.net@gmail.com>
To: "jose@ietf.org" <jose@ietf.org>
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Date: Sun, 30 Aug 2020 08:57:53 +0200
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Subject: [jose] RFC 8037 "alg" quirkiness
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I have just implemented support for Edwards curves in my JSON library.

Although it is certainly not a deal-breaker I find the use of "EdDSA" as a generic Edwards algorithm identifier rather quirky since it departs from the other JWS algorithms:
https://tools.ietf.org/html/rfc8037#appendix-A.4

For curiosity reasons I took a peek at the initial draft which has (in my opinion...) a more logical solution:
https://tools.ietf.org/html/draft-liusvaara-jose-cfrg-curves-00#appendix-A.4

May I ask why this change was performed?

For JSF (JSON Signature Format) I will stick to the "00" scheme which also permits use of ed25519ph and friends if needed:
https://mobilepki.org/jsf-lab/home

thanx,
Anders