FHIR Chat · Date field on jwks.json

Stream: smart/health-cards

Topic: Date field on jwks.json

Vitor Pamplona (Jan 07 2022 at 21:00):

What does it mean? I can't find any information in the spec, but several issuers do add this per-key date element

Vitor Pamplona (Jan 07 2022 at 21:01):

Example:

"https://www.gov.nl.ca/covid-19/life-during-covid-19/vaccination-record/prod": {
  "keys": [{
    "kty": "EC",
    "kid": "UboztS3pE1mr0dnG7Rv24kRNqlYbHrbxd-qBFerpZvI",
    "use": "sig",
    "alg": "ES256",
    "crv": "P-256",
    "x": "mB0PKTVRnr3JCtyucEjCHXkXW3COg5KP0y4gKCNJxWc",
    "y": "PTpxiYECNiuyRwpwqjme8OIFdG7N-HwN2XH02phdZCs",
    "date": 1632779181394
  }]
}

Josh Mandel (Jan 07 2022 at 22:07):

This has no defined semantics, as far as I'm aware. If you ask the issuers who are including it, let us know what they say?

Vitor Pamplona (Jan 07 2022 at 23:09):

They also don't know :)

Vitor Pamplona (Jan 07 2022 at 23:10):

I assume it's some created_at date that a lib puts inside a JWK object automatically and the devs just serialize it without much thinking.

Last updated: Apr 12 2022 at 19:14 UTC

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