This document defines a generic browser-based protocol for conveying – to services – hints about the IdPs or IdP-SP-proxies that should be used for authenticating the principal. This protocol, colloquially referred to as Identity Provider (IdP) hinting, can greatly simplify the discovery process for the end-user, by either narrowing down the number of possible/IdPs to choose from or by making the actual selection process fully transparent. 

Document URL: https://aarc-project.eu/wp-content/uploads/2019/04/AARC-G049-A_specification_for_IdP_hinting-v6.pdf
Development information:  N/A
Status: Final (11 Feb 2019)
DOI: TBD
Errata: none
Updated by: AARC-G061