Validate the token you actually received
Describe the minimum validation checks an API must perform before trusting a JWT or OAuth access token.
The reframe: signature validation is necessary, but it is only the first gate. A token carries several boundaries A JWT or OAuth access token is meant to be accepted by a specific resource server under specific conditions. The issuer says who created it. The audience says who should consume it. Time claims constrain when it is valid. Scopes or permissions constrain what it can do. The API must check all of those boundaries before treating the claims as facts. Library defaults are not your policy Token libraries know cryptography. They do not automatically know your tenant model, endpoint sensitivity, expected…
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