# PostQuantum DualUSB Token Library
**Enterprise-grade dual USB backup system with post-quantum cryptography protection**
[](https://badge.fury.io/py/pqcdualusb)
[](https://www.python.org/downloads/)
[](https://opensource.org/licenses/MIT)
[](https://pepy.tech/project/pqcdualusb)
## What is pqcdualusb?
PostQuantum DualUSB Token Library is a Python package that implements quantum-resistant dual USB token storage with advanced security features. It's designed for organizations and individuals who need maximum protection for sensitive data against both current and future quantum computing threats.
## Why choose pqcdualusb?
### 🛡️ **Quantum-Resistant Security**
- **Post-quantum cryptography** using Dilithium digital signatures
- **Future-proof protection** against quantum computer attacks
- **NIST-approved algorithms** following latest standards
### 🔐 **Dual USB Architecture**
- **Split secret design** - no single point of failure
- **Physical separation** of authentication tokens
- **Hardware binding** prevents USB drive cloning
### 💎 **Enterprise Features**
- **Memory protection** with secure allocation and cleanup
- **Timing attack resistance** with constant-time operations
- **Comprehensive audit logging** with tamper-evident chains
- **Cross-platform support** for Windows, Linux, and macOS
## Quick Start
```bash
# Install the library
pip install pqcdualusb
# Initialize dual USB setup
pqcdualusb init --primary /media/usb1 --secondary /media/usb2
# Create encrypted backup
pqcdualusb backup --data "sensitive.json" --passphrase "strong-passphrase"
# Restore from backup
pqcdualusb restore --backup-file backup.enc --restore-primary /media/usb_new
```
## Python API Example
```python
from pqcdualusb import init_dual_usb, verify_dual_setup
from pathlib import Path
# Set up dual USB security
primary = Path("/media/usb_primary")
secondary = Path("/media/usb_backup")
success = init_dual_usb(
primary_path=primary,
secondary_path=secondary,
passphrase="your-secure-passphrase"
)
if success:
print("Dual USB setup complete!")
is_valid = verify_dual_setup(primary, secondary)
print(f"Setup verification: {is_valid}")
```
## Use Cases
- **Offline password managers** with air-gapped security
- **Cryptocurrency wallet protection** with dual redundancy
- **Enterprise key custody** solutions
- **Secure document archival** with quantum protection
- **Development environments** requiring secure key storage
## Security Features
| Component | Algorithm | Quantum Resistant |
|-----------|-----------|-------------------|
| Encryption | AES-256-GCM | ✅ |
| Key Derivation | Argon2id | ✅ |
| Digital Signatures | Dilithium | ✅ |
| Authentication | HMAC-SHA256 | ✅ |
| Memory Protection | OS-level locking | ✅ |
## Performance
- **USB Detection**: < 1 second
- **Token Creation**: < 5 seconds
- **Backup/Restore**: 1-10 seconds
- **Memory Usage**: < 100MB peak
## Requirements
- Python 3.8 or higher
- Windows, Linux, or macOS
- Two USB drives for dual storage setup
## Links
- **GitHub Repository**: https://github.com/Johnsonajibi/PostQuantum-DualUSB-Token-Library
- **Documentation**: Full README with examples
- **Security Policy**: Responsible disclosure process
- **Issue Tracker**: Bug reports and feature requests
- **Releases**: Version history and changelogs
## License
MIT License - see LICENSE file for details.
---
**Secure your digital assets with quantum-resistant protection!**
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"description": "# PostQuantum DualUSB Token Library\r\n\r\n**Enterprise-grade dual USB backup system with post-quantum cryptography protection**\r\n\r\n[](https://badge.fury.io/py/pqcdualusb)\r\n[](https://www.python.org/downloads/)\r\n[](https://opensource.org/licenses/MIT)\r\n[](https://pepy.tech/project/pqcdualusb)\r\n\r\n## What is pqcdualusb?\r\n\r\nPostQuantum DualUSB Token Library is a Python package that implements quantum-resistant dual USB token storage with advanced security features. It's designed for organizations and individuals who need maximum protection for sensitive data against both current and future quantum computing threats.\r\n\r\n## Why choose pqcdualusb?\r\n\r\n### \ud83d\udee1\ufe0f **Quantum-Resistant Security**\r\n- **Post-quantum cryptography** using Dilithium digital signatures\r\n- **Future-proof protection** against quantum computer attacks \r\n- **NIST-approved algorithms** following latest standards\r\n\r\n### \ud83d\udd10 **Dual USB Architecture**\r\n- **Split secret design** - no single point of failure\r\n- **Physical separation** of authentication tokens\r\n- **Hardware binding** prevents USB drive cloning\r\n\r\n### \ud83d\udc8e **Enterprise Features**\r\n- **Memory protection** with secure allocation and cleanup\r\n- **Timing attack resistance** with constant-time operations\r\n- **Comprehensive audit logging** with tamper-evident chains\r\n- **Cross-platform support** for Windows, Linux, and macOS\r\n\r\n## Quick Start\r\n\r\n```bash\r\n# Install the library\r\npip install pqcdualusb\r\n\r\n# Initialize dual USB setup\r\npqcdualusb init --primary /media/usb1 --secondary /media/usb2\r\n\r\n# Create encrypted backup\r\npqcdualusb backup --data \"sensitive.json\" --passphrase \"strong-passphrase\"\r\n\r\n# Restore from backup\r\npqcdualusb restore --backup-file backup.enc --restore-primary /media/usb_new\r\n```\r\n\r\n## Python API Example\r\n\r\n```python\r\nfrom pqcdualusb import init_dual_usb, verify_dual_setup\r\nfrom pathlib import Path\r\n\r\n# Set up dual USB security\r\nprimary = Path(\"/media/usb_primary\")\r\nsecondary = Path(\"/media/usb_backup\")\r\n\r\nsuccess = init_dual_usb(\r\n primary_path=primary,\r\n secondary_path=secondary,\r\n passphrase=\"your-secure-passphrase\"\r\n)\r\n\r\nif success:\r\n print(\"Dual USB setup complete!\")\r\n is_valid = verify_dual_setup(primary, secondary)\r\n print(f\"Setup verification: {is_valid}\")\r\n```\r\n\r\n## Use Cases\r\n\r\n- **Offline password managers** with air-gapped security\r\n- **Cryptocurrency wallet protection** with dual redundancy\r\n- **Enterprise key custody** solutions\r\n- **Secure document archival** with quantum protection\r\n- **Development environments** requiring secure key storage\r\n\r\n## Security Features\r\n\r\n| Component | Algorithm | Quantum Resistant |\r\n|-----------|-----------|-------------------|\r\n| Encryption | AES-256-GCM | \u2705 |\r\n| Key Derivation | Argon2id | \u2705 |\r\n| Digital Signatures | Dilithium | \u2705 |\r\n| Authentication | HMAC-SHA256 | \u2705 |\r\n| Memory Protection | OS-level locking | \u2705 |\r\n\r\n## Performance\r\n\r\n- **USB Detection**: < 1 second\r\n- **Token Creation**: < 5 seconds\r\n- **Backup/Restore**: 1-10 seconds \r\n- **Memory Usage**: < 100MB peak\r\n\r\n## Requirements\r\n\r\n- Python 3.8 or higher\r\n- Windows, Linux, or macOS\r\n- Two USB drives for dual storage setup\r\n\r\n## Links\r\n\r\n- **GitHub Repository**: https://github.com/Johnsonajibi/PostQuantum-DualUSB-Token-Library\r\n- **Documentation**: Full README with examples\r\n- **Security Policy**: Responsible disclosure process\r\n- **Issue Tracker**: Bug reports and feature requests\r\n- **Releases**: Version history and changelogs\r\n\r\n## License\r\n\r\nMIT License - see LICENSE file for details.\r\n\r\n---\r\n\r\n**Secure your digital assets with quantum-resistant protection!**\r\n",
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