Multi-System SSO Authentication Skill

Overview

This skill provides comprehensive patterns for implementing enterprise SSO authentication that supports multiple identity providers. It covers JWT RS256 token validation, backwards verification with authoritative systems, Laravel session decryption, permission mapping, and Redis session management.

When to Use This Skill

• Integrating with multiple enterprise SSO systems
• Implementing secure JWT token validation with backwards verification
• Supporting legacy session-based authentication alongside JWT
• Building unified authentication adapters for microservices
• Mapping permissions across different systems
• Implementing token introspection and revocation
• Handling OAuth2 flows with multiple providers

Core Concepts

Authentication Architecture