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[OAUTH-WG] Signed JWK Sets

Richard Barnes <rlb@ipv.sx> Sun, 17 March 2024 05:55 UTC

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From: Richard Barnes <rlb@ipv.sx>
Date: Sun, 17 Mar 2024 15:55:16 +1000
Message-ID: <CAL02cgSANrR=nys3RXDOYJPibLkv25X8Okq4dhL0Dpfi_ZSS_A@mail.gmail.com>
To: "oauth@ietf.org WG" <oauth@ietf.org>
Cc: Sharon Goldberg <goldbe@bastionzero.com>
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Subject: [OAUTH-WG] Signed JWK Sets
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Hi all,

A few of us have been considering use cases for JWTs related to Verifiable
Credentials and container signing, which require better "proof of
authority" for JWT signing keys.  Sharon Goldberg and I wrote up a quick
specification for how to sign a JWK set, and how you might extend discovery
mechanisms to present such a signed JWK set:

https://github.com/bifurcation/redistributable-jwks/blob/main/draft-barnes-oauth-redistributable-jwks.md

(Just in GitHub for now; will publish as an I-D when the window reopens
tomorrow.)

If we could get this functionality added to OAuth / OIDC, it would make
these use cases work a lot better.  As a prelude toward proposing working
group adoption, it would be great to know if this design seems helpful to
other folks as well.  Obviously, happy to answer any questions / comments.

Thanks,
--Richard

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