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OAuth State/Nonce Debugger

Generate, parse, and validate OAuth state and nonce parameters

State Configuration

Generated State

Click Generate to create a state value

Generated Nonce

Click Generate to create a nonce value

Learn More

About State & Nonce

  • •state prevents CSRF attacks in OAuth flows
  • •nonce prevents replay attacks in OIDC id_tokens
  • •Both should be cryptographically random and stored securely
  • •State can optionally encode additional data (return URL, tenant ID)

State/Nonce in IAM

  • •CSRF Protection – Bind auth request to session
  • •Replay Prevention – Ensure id_token freshness
  • •Deep Linking – Return user to original page
  • •Multi-tenant – Pass tenant context through flow