oauth21-refresh-token

OAuth 2.1 refresh token rotation issues a new token on each use and revokes the previous one. Configure your authorization server to enforce rotation across token endpoints, applying client binding and no-store caching.

Token binding in OAuth 2.1 ties refresh tokens to a specific client using cryptographic proofs. You can apply DPoP or mTLS binding strategies across authorization and token endpoints to mitigate token theft and misuse.

Issue refresh tokens to public clients based on client type, risk, and server policy. OAuth 2.1 enables secure issuance for public clients by enforcing strict binding and rotation strategies to mitigate inherent security risks.

Enforce scope constraints by binding refresh tokens strictly to their original granted scopes. The authorization server ensures requested scopes during token refresh do not exceed the initial authorization grant boundaries.

OAuth 2.1 refresh token handling enforces no-store caching. This prevents persistent storage of sensitive tokens, ensuring the authorization server validates tokens without retaining vulnerable copies in intermediate cache layers.

The best way to revoke an OAuth 2.1 refresh token is through the token revocation endpoint. Configure your authorization server to support token revocation workflows, immediately invalidating the token and halting further rotation.