RFC 9470
OAuth 2.0 Step Up Authentication Challenge Protocol, September 2023
- File formats:
- Also available: XML file for editing
- Status:
- PROPOSED STANDARD
- Authors:
- V. Bertocci
B. Campbell - Stream:
- IETF
- Source:
- oauth (sec)
Cite this RFC: TXT | XML | BibTeX
DOI: https://doi.org/10.17487/RFC9470
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Abstract
It is not uncommon for resource servers to require different authentication strengths or recentness according to the characteristics of a request. This document introduces a mechanism that resource servers can use to signal to a client that the authentication event associated with the access token of the current request does not meet its authentication requirements and, further, 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 recentness when processing an authorization request.
For the definition of Status, see RFC 2026.
For the definition of Stream, see RFC 8729.