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Re: [Curdle] Regarding X25519 in JOSE ...

"Matthew A. Miller" <linuxwolf+ietf@outer-planes.net> Mon, 24 July 2017 17:05 UTC

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Sender: Matthew Miller <linuxwolf@outer-planes.net>
To: Anders Rundgren <anders.rundgren.net@gmail.com>, curdle@ietf.org
References: <e6cc679b-02a6-7710-4651-c2b59a56c892@outer-planes.net> <1365eab6-f45a-c5e9-99bc-194b5019814e@gmail.com>
From: "Matthew A. Miller" <linuxwolf+ietf@outer-planes.net>
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Date: Mon, 24 Jul 2017 11:04:57 -0600
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Subject: Re: [Curdle] Regarding X25519 in JOSE ...
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On 17/07/24 16:38, Anders Rundgren wrote:
> On 2017-07-24 16:26, Matthew A. Miller wrote:
>> Hello all,
>>
>> It was asked if any work more work is needed to add X25519 (and X448) to
>> JOSE.  I believe [RFC8037] covers that, so I don't think any more work
>> is necessary right now.
> 
> Would it be possible (and not too controversial) describing why
> RFC8037 didn't overload the JWK "EC" specification?  The reason
> for asking is because the Java camp intends reusing the EC classes
> making "OKP" a JOSE-only concept.  Personally, I believe OKP is just
> fine (=clean) and should be adopted not only by Java, but by PKCS #11
> and .NET as well.
> 

[ Please let's not re-litigate this decision ... ]

The JOSE WG did discuss this[1] (albeit prior to its adoption as a WG
item).  The rough consensus was to use a different "kty" to avoid
various incompatibilities (particularly with regards to the JWK
thumbprint definition, although others did come up).


- m&m

Matthew A. Miller

[1] https://mailarchive.ietf.org/arch/msg/jose/8-Mo069HvB9_WlT9M2GrgNYHvG0

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