🔐 Subcoder Cipher Matrix

The ultimate all-in-one encryption, decryption, and steganography toolkit with cyberpunk aesthetics

A comprehensive web-based cryptography application designed for cybersecurity students, developers, and encryption enthusiasts. Features 50+ cipher methods, modern encryption algorithms, and educational tools in a sleek cyberpunk interface.

🌟 Features

✅ Currently Implemented

• 🔐 Classical Ciphers: Caesar, Vigenère
• ⚡ Encoding Methods: Binary, Hexadecimal conversion
• 🖼️ Steganography: Image steganography with password protection
• 🔒 Modern Crypto: Basic PGP messaging system
• 🎨 Cyberpunk UI: Futuristic interface with neon aesthetics
• 💾 Offline Operation: Complete client-side processing

🚀 Coming Soon (50+ Methods)

• Classical Ciphers: Atbash, Polybius Square, Rail Fence, Playfair, Four Square
• Modern Encryption: AES (128/192/256), ChaCha20, Salsa20, Blowfish
• Hash Functions: SHA-256/512, MD5, HMAC, PBKDF2, bcrypt
• Advanced Steganography: Audio, text, file header hiding
• Key Exchange: Diffie-Hellman, ECDSA, RSA signatures
• Fun Ciphers: Morse Code, NATO Phonetic, Enigma Simulator
• Utility Tools: Password generator, entropy calculator, brute force tools

🎯 Target Audience

• 🎓 Cybersecurity Students: Learn encryption fundamentals interactively
• 👨‍💻 Developers: Quick access to encoding/decoding tools
• 🔍 Security Professionals: Test and analyze encrypted data
• 🔬 Crypto Enthusiasts: Explore historical and modern ciphers

🚀 Quick Start

Option 1: Single File Deployment

1. Download subcoder-cipher-matrix.html
2. Open in any modern browser
3. Start encrypting! 🎉

Option 2: Full Development Setup

# Clone the repository
git clone https://github.com/yourusername/subcoder-cipher-matrix.git
cd subcoder-cipher-matrix

# Open in browser
open src/index.html
# Or use a local server
npx live-server src/ --port=5500

📁 Project Structure

subcoder-cipher-matrix/
├── src/
│   ├── index.html              # Main application
│   ├── css/                    # Styling
│   │   ├── main.css           # Core cyberpunk styles
│   │   ├── components.css     # UI components
│   │   └── responsive.css     # Mobile optimization
│   ├── js/
│   │   ├── core/              # Core application logic
│   │   ├── engines/           # Cipher implementations
│   │   ├── ui/                # User interface management
│   │   └── tests/             # Testing framework
│   └── assets/                # Images, fonts, icons
├── docs/                      # Documentation
├── examples/                  # Sample files and tutorials
└── tools/                     # Utility scripts

🔧 System Requirements

• Browsers: Chrome 90+, Firefox 88+, Safari 14+, Edge 90+
• Platform: Windows 10/11, macOS, Linux
• Memory: 100MB RAM recommended
• Storage: 50MB for full installation
• Network: Offline capable (no internet required)

🎮 Usage Examples

Basic Encryption

// Caesar Cipher
const encrypted = caesarEncrypt("HELLO WORLD", 3);
console.log(encrypted); // "KHOOR ZRUOG"

// Vigenère Cipher
const encrypted = vigenereEncrypt("SECRET MESSAGE", "KEY");
console.log(encrypted); // "CIAPIX WICCEOI"

Image Steganography

1. Select an image (PNG/JPG)
2. Enter secret text
3. Optional: Add password protection
4. Download modified image
5. Share securely! 🕵️‍♂️

PGP Messaging

1. Generate key pair
2. Share public key with recipient
3. Encrypt messages with their public key
4. They decrypt with their private key

🛡️ Security Features

• 🔒 Client-Side Only: No data leaves your browser
• 🎲 Secure Randomness: Uses Web Crypto API
• 🧹 Memory Management: Clears sensitive data after use
• 🔐 Modern Algorithms: Industry-standard encryption
• 🚫 No Telemetry: Complete privacy protection

🎨 Customization

Themes

• Cyberpunk Blue (default)
• Matrix Green
• Neon Purple
• Dark Mode

Configuration

// Customize settings
SubcoderCipherMatrix.setConfig({
    theme: 'cyberpunk-blue',
    animations: true,
    autoSave: false,
    chunkSize: 1024 * 1024 // 1MB
});

🧪 Testing

Run the test suite to verify all ciphers work correctly:

# Open test runner
open test/test-runner.html

# Or run specific tests
npx live-server test/ --port=5501

📚 Educational Resources

• 📖 Cipher Reference Guide: Learn how each cipher works
• 🎓 Cryptography Tutorials: Step-by-step learning
• ⚡ API Documentation: Developer reference
• 🔍 Security Best Practices: Stay safe online

🤝 Contributing

We welcome contributions! Whether you're fixing bugs, adding new ciphers, or improving documentation:

1. 🍴 Fork the repository
2. 🌿 Create your feature branch (git checkout -b feature/amazing-cipher)
3. ✅ Test your changes thoroughly
4. 💬 Commit your changes (git commit -m 'Add amazing cipher')
5. 🚀 Push to the branch (git push origin feature/amazing-cipher)
6. 📝 Open a Pull Request

See CONTRIBUTING.md for detailed guidelines.

🗺️ Roadmap

Phase 1: Foundation (Current)

• ✅ Classical ciphers
• ✅ Basic steganography
• ✅ Core UI framework

Phase 2: Expansion (Next 4 weeks)

• 🚧 Modern encryption (AES, ChaCha20)
• 🚧 Hash functions (SHA-256, HMAC)
• 🚧 Audio steganography

Phase 3: Professional Tools (8-12 weeks)

• 🔮 JWT token tools
• 🔮 Certificate analysis
• 🔮 Advanced key management
• 🔮 Brute force tools

See PROJECT_ROADMAP.md for detailed timeline.

📜 License

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

🙏 Acknowledgments

• Anthropic Claude: AI-assisted development
• Web Crypto API: Modern cryptography support
• Cyberpunk Community: Design inspiration
• Open Source Contributors: Making crypto accessible

📞 Support

• 🐛 Bug Reports: Create an issue
• 💡 Feature Requests: Request a feature
• 📚 Documentation: Read the docs
• 💬 Discussions: GitHub Discussions

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⚡ Built with passion for cryptography and cyberpunk aesthetics ⚡

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