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draft-ietf-oauth-iss-auth-resp-00

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OAuth 2.0 Authorization Server Issuer Identifier in Authorization Response (Internet-Draft, 2021)

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OAuth 2.0 Authorization Server Issuer Identifier in Authorization Response

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https://datatracker.ietf.org/doc/html/draft-ietf-oauth-iss-auth-resp-00

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IETF Datatracker

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This document specifies a new parameter "iss" that is used to explicitly include the issuer identifier of the authorization server in the authorization response of an OAuth authorization flow. If implemented correctly, the "iss" parameter serves as an effective countermeasure to "mix-up attacks".

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