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Note subdomain config differentiation #365

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merged 3 commits into from May 16, 2023
Merged

Note subdomain config differentiation #365

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ecdb512
Note subdomain config differentiation
smhendrickson May 10, 2023
98bfe1b
Update draft-ietf-privacypass-protocol.md
tfpauly May 11, 2023
ae5e298
Update draft-ietf-privacypass-protocol.md
smhendrickson May 11, 2023
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6 changes: 6 additions & 0 deletions draft-ietf-privacypass-protocol.md
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Expand Up @@ -195,6 +195,12 @@ Issuer directory resources have the media type
/.well-known/token-issuer-directory; see {{wkuri-reg}} for the registration
information for this well-known URI.

The issuer directory and issuer resources SHOULD be available on the same domain. If
an Issuer wants to service multiple different issuer directories they MUST create
unique subdomains for each so the TokenChallenge defined in
{{Section 2.1 of !AUTHSCHEME=I-D.ietf-privacypass-auth-scheme}} can be
differentiated correctly.

Issuers SHOULD use HTTP caching to permit caching of this resource
{{!RFC5861}}. The cache lifetime depends on the Issuer's key rotation schedule.
Regular rotation of token keys is recommended to minimize the risk of key
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