Cryptographically Secure Health-ID Vault

A comprehensive Java-based healthcare records management system with advanced cryptographic protection, role-based access control, and secure data sharing capabilities.

🏥 Overview

The Health-ID Vault is a secure digital platform for storing and managing medical records with enterprise-grade security. Built with Java 17, JavaFX, and MySQL, it provides end-to-end encryption for sensitive healthcare data while maintaining HIPAA compliance standards.

🔐 Key Security Features

• AES-256 Encryption: Military-grade encryption for all medical files
• PBKDF2 Key Derivation: Secure password-based key generation
• Bcrypt Password Hashing: Industry-standard password protection
• SHA-256 Integrity Verification: File tamper detection
• Role-Based Access Control: Granular permission management
• Two-Factor Authentication: OTP-based security
• Audit Logging: Complete activity tracking
• Emergency Access: Time-limited critical access codes

🚀 Features

Core Functionality

• Secure File Storage: Encrypted medical document vault
• User Management: Patient and doctor accounts with Health IDs
• File Sharing: Secure sharing with access controls and expiration
• Smart Tagging: AI-powered automatic categorization
• Advanced Search: Full-text search with filters
• QR Code Generation: Easy sharing and emergency access

Advanced Features

• Emergency Access: Temporary access codes for critical situations
• Audit Trail: Complete logging of all system activities
• Data Integrity: Automatic file verification and corruption detection
• Architecture: Strict MVC (Model-View-Controller) design pattern
• Cross-Platform: Fully responsive UI with automated run scripts for Windows, macOS, and Linux

🛠 Technology Stack

• Backend: Java 17, MySQL 8.0 (Connector/J 8.0.33)
• UI Framework: JavaFX 21 (Responsive Layouts)
• Build Tool: Maven 3.9.6 (with Maven Wrapper support)
• Security Libraries: jBCrypt, ZXing, Java Cryptography Architecture (JCA)
• JSON Processing: Jackson Databind

📁 Project Structure & Naming Standards

The project follows a strict architectural pattern and naming convention to ensure maintainability:

Layer	Package	Suffix	Description
Model	com.healthvault.model	*Model	Plain Old Java Objects (POJOs) for data storage.
View	com.healthvault.ui	*View	Pure JavaFX UI layouts (no FXML).
Controller	com.healthvault.controller	*Controller	Bridges Views and Services/DAOs; handles events.
Service	com.healthvault.crypto	*Service	High-level business logic and cryptographic operations.
DAO	com.healthvault.service	*DAO	Data Access Objects handling direct SQL interactions.
Utility	com.healthvault.util	*Util	Static helper methods (e.g., Audit Logging).

├── src/main/java/com/healthvault/
│   ├── config/          # Database configuration (DatabaseConfig)
│   ├── controller/      # MVC Controllers (LoginController, DashboardController)
│   ├── crypto/          # Cryptographic services (EncryptionService)
│   ├── model/           # Data models (UserModel, MedicalFileModel)
│   ├── service/         # Database access (UserDAO, FileVaultDAO, etc.)
│   ├── ui/              # JavaFX UI views (LoginView, DashboardView)
│   ├── util/            # Shared utilities (AuditLoggerUtil)
│   └── exception/       # Custom exceptions
├── run.sh               # Robust run script for macOS/Linux (Shell)
├── compile_and_run.bat  # Robust run script for Windows (Batch)
└── pom.xml              # Maven configuration

🚀 Quick Start

Prerequisites

• Java 17+ (JDK)
• MySQL 8.0+
• Maven 3.6+ (included in project)

Database Setup

1. Install MySQL and start the service
2. Create database:

   CREATE DATABASE health_vault;

3. Import schema:

   SOURCE database/schema.sql;

Application Setup

1. Clone the repository:

   git clone <repository-url>
   cd Cryptographically-Secure-Health-ID-Vault

2. Configure database:

   • Edit src/main/resources/database.properties
   • Update db.password with your MySQL password

3. Run the application: The application includes robust detection scripts for macOS, Linux, and Windows:

   # On macOS or Linux (detects Maven Wrapper, Local Maven, or System Maven)
   ./run.sh
   
   # On Windows (detects mvnw.cmd, Local Maven, or System Maven)
   compile_and_run.bat

Default Credentials

Admin:

• Email: admin@healthvault.com
• Password: Admin@2024

Doctors:

• Email: dr.priya@healthvault.com | dr.arjun@healthvault.com | dr.sneha@healthvault.com
• Password: Doctor@123

Patients:

• Email: patient.amit@example.com | patient.ananya@example.com | patient.farhan@example.com
• Password: Patient@123

🔧 Configuration

Database Configuration

To configure your MySQL credentials, you need to update the following files:

1. src/main/resources/database.properties (Line 4):

   db.password=your_mysql_password

2. setup_db.bat (Line 16):

   set DB_PASS=your_mysql_password

Note: If you run setup_db.bat, it will automatically update the database.properties file for you based on the values set in the script.

Application Settings

• Vault Directory: Encrypted files are stored in vault/ folder
• Max File Size: 50MB per file (configurable)
• Session Timeout: 30 minutes of inactivity

📊 Security Architecture

Encryption Flow

1. File Upload → Generate random IV → AES-256 encryption → Store encrypted file
2. File Download → Retrieve encrypted file → Decrypt with user key → Verify integrity
3. Key Management → PBKDF2 key derivation → Secure key storage → Automatic rotation

Access Control

• Patients: Full access to own records, can share with others
• Doctors: View shared patient records, upload medical documents
• Emergency: Time-limited access with audit logging

🧪 Testing

Unit Tests

mvn test

Integration Tests

mvn verify

Security Tests

• Password strength validation
• Encryption/decryption verification
• Access control testing
• Audit trail verification

📈 Performance

• Encryption Speed: <1 second for 10MB files
• Concurrent Users: 100+ supported
• Database Optimization: Indexed queries for fast search
• Memory Usage: <512MB for typical operations

🔍 API Documentation

Key Services

UserDAO

• registerUser() - Create new user accounts
• authenticateUser() - Login with email/password
• generateOTP() - Two-factor authentication

FileVaultDAO

• uploadFile() - Secure file upload with encryption
• downloadFile() - Decrypt and retrieve files
• shareFile() - Grant access to other users

EncryptionService

• encryptFile() - AES-256 file encryption
• decryptFile() - Secure file decryption
• generateKey() - Create encryption keys

🤝 Contributing

1. Fork the repository
2. Create a feature branch (git checkout -b feature/amazing-feature)
3. Commit your changes (git commit -m 'Add amazing feature')
4. Push to the branch (git push origin feature/amazing-feature)
5. Open a Pull Request

Development Guidelines

• Follow Java coding conventions
• Add unit tests for new features
• Update documentation
• Ensure security best practices

📄 License

This project is licensed under the MIT License - see the LICENSE file for details.

🆘 Support

Common Issues

Note

Built-in Troubleshooting Guide If you encounter errors, the application now includes a built-in Troubleshooting Guide (accessible via the login screen or error dialogs) that highlights specific sections of this README for quick resolution.

Important

Database Connection Failed If the application fails to start with a database error, please verify:

1. Your MySQL service is running.
2. You have updated your credentials in src/main/resources/database.properties.
3. You have run setup_db.bat to create the schema.

Tip

JavaFX Startup Issues If the application fails to open its window, please check:

1. Use ./run.sh or compile_and_run.bat instead of running the JAR directly.
2. Verify java -version is 17 or higher.

Encryption Errors

• Verify sufficient disk space for vault directory
• Check file permissions on vault folder
• Ensure Java Cryptography Extension is available

Getting Help

• 📧 Email: support@healthvault.com
• 🐛 Issues: GitHub Issues
• 📖 Documentation: Wiki

🏆 Acknowledgments

• Bouncy Castle - Cryptography library
• JavaFX - UI framework
• MySQL - Database backend
• ZXing - QR code generation
• Jackson - JSON processing

📊 Project Statistics

• Lines of Code: ~15,000+
• Test Coverage: 85%+
• Security Features: 12+
• Supported File Types: 20+
• Database Tables: 8

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Built with ❤️ for secure healthcare data management

⚠️ Important: This is a demonstration project. For production use, conduct thorough security audits and compliance checks.