OAuth and OIDC

  1. OAuth 2.1 Evolution
    1. Motivation for OAuth 2.1
      1. Security Improvements
        1. Simplification Goals
          1. Industry Feedback
          2. Key Changes
            1. Mandatory PKCE
              1. Universal Application
                1. Security Rationale
                2. Removed Grant Types
                  1. Implicit Grant Removal
                    1. Password Grant Removal
                      1. Migration Guidance
                      2. Enhanced Security Defaults
                        1. Stricter Requirements
                          1. Best Practice Integration
                        2. Migration Considerations
                          1. Existing Implementation Impact
                            1. Upgrade Strategies
                              1. Compatibility Issues
                              2. Future Directions
                                1. Ongoing Standardization
                                  1. Industry Adoption
                                    1. Security Evolution

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                                  10. Advanced OAuth and OIDC Topics

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                                  12. Implementation Guidance