QuantumLink - Secure Quantum Communication Protocol

QuantumLink is a communication protocol designed to leverage quantum mechanics, specifically quantum key distribution (QKD) and quantum entanglement, to ensure ultra-secure data transmission. Unlike classical encryption methods, QuantumLink guarantees that any interception attempt will be detectable, providing unparalleled security.

Features

• Quantum Key Distribution (QKD) – Secure exchange of encryption keys using quantum principles.
• Entangled Photon Transmission – Utilizes entangled particles for secure, tamper-proof messaging.
• Tamper Detection – Any interception causes measurable disturbances in the quantum state.
• Hybrid Integration – Works alongside classical networks for scalability.
• Ultra-Fast Secure Communication – Ideal for banking, governmental, and military applications.

Requirements

• Python 3.8 or later
• Qiskit (IBM's quantum computing SDK)
• QuTiP (Quantum Toolbox in Python)
• PyCryptodome (for classical cryptography components)
• NumPy, SciPy, Matplotlib

Installation

1. Clone the repository:

git clone https://github.com/yourusername/QuantumLink.git
cd QuantumLink

2. Install the required dependencies:

pip install -r requirements.txt

3. Install the package in development mode:

pip install -e .

Project Structure

The package is organized into the following modules:

• core/ - Core quantum mechanics implementations

  • qkd.py - Quantum key distribution (BB84 protocol)
  • entanglement.py - Entanglement generation and management
  • tamper_detector.py - Quantum tamper detection

• crypto/ - Cryptographic components

  • hybrid_encryption.py - Combines quantum and classical encryption
  • aes_encryption.py - Classical AES encryption using quantum-derived keys

• network/ - Communication components

  • quantum_channel.py - Simulated quantum communication channel
  • classical_channel.py - Classical communication channel
  • server.py - QuantumLink server
  • client.py - QuantumLink client

• utils/ - Utility functions

  • visualization.py - Visualization tools for quantum states
  • quantum_utils.py - Helper functions for quantum operations
  • metrics.py - Security and performance metrics

Usage

Running the Demo

To see QuantumLink in action, run the included demo script:

python demo.py

You can also run specific demo components:

# For QKD demo only
python demo.py --demo qkd

# For entanglement demo only
python demo.py --demo entanglement

# For tamper detection demo only
python demo.py --demo tamper

# For hybrid encryption demo only
python demo.py --demo encryption

# For network demo only
python demo.py --demo network

Starting the Server

To start a QuantumLink server:

python -m quantumlink.network.server

Running a Client

To run a QuantumLink client that connects to the server:

python -m quantumlink.network.client

Using the Library in Your Code

from quantumlink.core.qkd import QKDProtocol
from quantumlink.crypto.hybrid_encryption import HybridEncryption

# Create QKD protocol
qkd = QKDProtocol(key_length=256)

# Simulate quantum key exchange
key, error_rate, success = qkd.simulate_complete_qkd()

if success:
    # Use the key for encryption
    encryption = HybridEncryption()
    encryption.quantum_key = key
    
    # Encrypt message
    encrypted = encryption.encrypt_message("Secret quantum message")
    
    # Decrypt message
    decrypted = encryption.decrypt_message(encrypted['iv'], encrypted['ciphertext'])
    print(decrypted.decode('utf-8'))

Testing

To run the test suite:

pytest

Note on Quantum Simulation

QuantumLink currently uses quantum simulators rather than actual quantum hardware. In a real implementation, the quantum parts would be executed on quantum computers or specialized quantum communication hardware.

Future Enhancements

• Integration with real quantum hardware via cloud providers
• Implementation of additional QKD protocols (E91, B92)
• Quantum network routing for multi-node quantum networks
• Post-quantum classical cryptography integration

License

MIT