Learning Tools Interoperability (LTI) 1.3という仕様でOpenID Connectが使われてるそうで(JJUG CCC 2026 Spring のセッション一覧で初めて知った)、プロファイルを見たところ、ちょっとおもしろかった。「a combination of the 'Initiating Login from a Third Party' and https://t.co/5PyVBcYn8A
We keep building new identity and agent standards…
OAuth, OIDC, JWTs, DPoP, passkeys, HTTP Message Signatures, Client attestation, verifiable credentials, workload identity, A2A Agent Signing... the list never ends.
Under the hood, it’s still:
"Trust me, I signed it."