🛡️ Secure Login System with Role-Based Access

This is a full-stack login and registration system built using Spring Boot (Java) for the backend and React.js for the frontend. It includes authentication via JWT, role-based access control (User/Admin), secure password storage, and password history tracking.

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📌 Features

• 🔐 JWT-Based Authentication: Protects secure endpoints using JSON Web Tokens.
• 👥 Role-Based Access Control: Users can register as either ROLE_USER or ROLE_ADMIN.
• 📝 Password Policy Enforcement:
  • Must contain at least one digit.
  • Must contain at least one uppercase letter.
• 📚 Password History Tracking:
  • The last 3 passwords are stored to prevent reuse.
• ⏰ Time Slot Configuration:
  • Admins can define configurable values like time limits.
• 🚫 Change Password on First Login:
  • Users can be flagged to change passwords upon their first login.

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🧪 Tech Stack

Backend

• Java 17
• Spring Boot
• Spring Security
• JPA / Hibernate
• H2 / MySQL (configurable)
• JWT for secure authentication

Frontend

• React.js
• Axios for HTTP calls
• React Router for navigation

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🚀 Running the Application

Prerequisites

• Java 17+
• Node.js 16+
• Maven

Backend Setup

cd backend
mvn clean install
mvn spring-boot:run