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Project Title: Secure Authentication & Authorization with Spring Security and JWT Project Overview: This project implements robust authentication and authorization using Spring Security and JWT-based token handling. It ensures secure access control through Access Tokens for short-lived authentication and Refresh Tokens to extend user sessions without requiring reauthentication. Technologies Used: ✅ Spring Boot – Framework for rapid development ✅ Spring Security – Secures endpoints and manages authentication ✅ JWT (JSON Web Tokens) – Enables stateless authentication ✅ Access Token – Short-lived token for secure API access ✅ Refresh Token – Long-lived token for obtaining new access tokens ✅ MySQL/PostgreSQL – Stores user credentials securely ✅ JPA/Hibernate – Handles database operations ✅ Spring MVC & REST – RESTful API design

Key Features: 🔐 User Authentication:

• Secure login and registration with hashed passwords
• Role-based access control using Spring Security

🔄 JWT Token Management:

• Access Token for quick API authorization
• Refresh Token to renew expired tokens without re-login

🛡️ Token Expiry & Renewal:

• Short-lived Access Tokens for enhanced security
• Refresh Tokens to prevent unnecessary credential exposure

🔗 Secure Endpoints:

• API protected using JWT authentication filters
• Requests validated using Bearer Tokens

How It Works: 1️⃣ User logs in with username/password 2️⃣ Server generates Access Token & Refresh Token 3️⃣ Client uses Access Token for API calls 4️⃣ On expiry, Refresh Token generates a new Access Token 5️⃣ User remains authenticated without re-entering credentials Project Benefits: ✅ Improves security by using stateless authentication ✅ Eliminates session storage complexity ✅ Prevents frequent login prompts using Refresh Tokens ✅ Ensures role-based access control for better user management