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Challenges don't need to be unique #462

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Sep 5, 2023
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3 changes: 1 addition & 2 deletions draft-ietf-privacypass-auth-scheme.md
Original file line number Diff line number Diff line change
Expand Up @@ -214,8 +214,7 @@ value. This document follows the default padding behavior described in
As an Authentication Parameter (`auth-param` from {{!RFC9110, Section 11.2}}),
the value can be either a token or a quoted-string, and might be required to
be a quoted-string if the base64url string includes "=" characters. This
challenge value MUST be unique for every 401 HTTP response to prevent replay
attacks. This parameter is required for all challenges.
parameter is required for all challenges.

- "token-key", which contains a base64url encoding of the public key for
use with the issuance protocol indicated by the challenge. See {{ISSUANCE}}
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