docs: add RFC 8693 token exchange research note - #61
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rkoster
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September 18, 2026 12:43
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What is this note about?
A companion research note on RFC 8693 OAuth 2.0 Token Exchange. It covers the Security Token Service model, subject and actor tokens, audience/resource targeting, impersonation versus delegation,
act/may_actclaims, and Cloud Foundry mappings to UAA, instance identity, service bindings, gateways, and audit.This is a separate PR from the RFC 9943 SCITT note.
Checklist
research/and uses a lowercase kebab-case filename.research/TEMPLATE.mdand has valid frontmatter.