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draft-bertocci-oauth-step-up-authn-challenge-01

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OAuth 2.0 Step-up Authentication Challenge Protocol (Internet-Draft, 2022)

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OAuth 2.0 Step-up Authentication Challenge Protocol

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https://datatracker.ietf.org/doc/html/draft-bertocci-oauth-step-up-authn-challenge

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IETF Datatracker

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It is not uncommon for resource servers to require different authentication strengths or freshness according to the characteristics of a request. This document introduces a mechanism for a resource server to signal to a client that the authentication event associated with the access token of the current request doesn't meet its authentication requirements and specify how to meet them. This document also codifies a mechanism for a client to request that an authorization server achieve a specific authentication strength or freshness when processing an authorization request.

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