QuantumLock™ Security Architecture

Quantum Chain of Trust

QuantumLock™ uses a multi-layered security architecture based on real quantum entropy and post-quantum cryptography.

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🔐 Security Overview

What Makes QuantumLock™ Secure?

Traditional Licensing	QuantumLock™
Pseudo-random keys (PRNGs)	True quantum entropy from QCOS
Predictable patterns	Cryptographically unpredictable
Easy to reverse engineer	Compiled binary with Nuitka
Simple hash signatures	SHA3-512 quantum signatures
No proof of origin	Quantum chain of trust

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⚛️ Quantum Entropy Source

QCOS Integration

QuantumLock™ uses the QCOS (Quantum Circuit Optimization Service) API for true random number generation:

┌─────────────────────────────────────────────────────────────┐
│                    QUANTUM ENTROPY FLOW                     │
├─────────────────────────────────────────────────────────────┤
│                                                             │
│  ┌─────────────┐     ┌─────────────┐     ┌─────────────┐   │
│  │   Quantum   │     │    QCOS     │     │ QuantumLock │   │
│  │  Hardware   │────▶│    API      │────▶│    API      │   │
│  │ (IBM/IonQ)  │     │             │     │             │   │
│  └─────────────┘     └─────────────┘     └─────────────┘   │
│         │                   │                   │           │
│    Superposition      Measurement         License           │
│    + Entanglement     + Extraction       Generation         │
│                                                             │
└─────────────────────────────────────────────────────────────┘

Entropy Quality Metrics

• Fidelity: >99.5% quantum state fidelity
• Source: IBM Quantum / IonQ hardware
• Bits: Up to 4096 bits per request
• Verification: Each entropy batch includes job ID for audit

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🔑 Cryptographic Stack

Algorithms Used

Purpose	Algorithm	Quantum-Safe
License Signature	SHA3-512	✅ Yes
Key Derivation	Argon2id	✅ Yes
Data Encryption	AES-256-GCM	✅ Yes
Alternative Encryption	ChaCha20-Poly1305	✅ Yes
Digital Signatures	RSA-4096 + Quantum Seed	✅ Yes
Key Exchange	X25519 + Quantum Nonce	✅ Yes

Why SHA3-512?

SHA3 (Keccak) is specifically designed to resist:

• Length extension attacks
• Quantum computing attacks (Grover's algorithm provides only √N speedup)
• Collision attacks

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🛡️ License Structure

Quantum Signature Generation

Each license includes a 128-character hexadecimal quantum signature:

# Simplified signature generation flow
quantum_entropy = qcos_api.get_entropy(bits=512)
license_data = serialize(customer_id, features, expiry)
signature = sha3_512(license_data + quantum_entropy)

License Format

{
  "license_key": "QLOCK-7A3F-9B2C-4E1D",
  "quantum_signature": "a1b2c3d4e5f6...128_chars...789xyz",
  "end_customer_id": "customer@company.com",
  "features": ["premium", "api_access"],
  "valid_until": "2026-12-26T15:30:00Z",
  "quantum_verified": true,
  "qcos_fidelity": 0.9987,
  "qcos_job_id": "job_abc123",
  "security_level": "QUANTUM_SECURED"
}

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🔒 Offline Validation

How Offline Validation Works

The LicenseValidator can verify licenses without API connectivity:

┌─────────────────────────────────────────────────────────────┐
│                   OFFLINE VALIDATION                        │
├─────────────────────────────────────────────────────────────┤
│                                                             │
│  ┌─────────────┐     ┌─────────────┐     ┌─────────────┐   │
│  │   License   │     │  Embedded   │     │  Signature  │   │
│  │    File     │────▶│  Public Key │────▶│ Verification│   │
│  │             │     │             │     │             │   │
│  └─────────────┘     └─────────────┘     └─────────────┘   │
│         │                   │                   │           │
│    Load license       Verify with         Valid/Invalid     │
│    from disk          bundled key                           │
│                                                             │
└─────────────────────────────────────────────────────────────┘

Security Measures

1. Embedded Public Key: SDK contains embedded public key for verification
2. Signature Chain: License signature includes creation timestamp
3. Expiry Check: Validates against system time with tolerance
4. Feature Validation: Cryptographically bound features list

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🛡️ Anti-Tampering

Code Protection

The SDK and CLI are distributed as compiled binaries:

• Nuitka Compilation: Python code compiled to native machine code
• No Source Access: .so/.dll files contain no readable Python
• Symbol Stripping: Debug symbols removed
• Obfuscation: Additional obfuscation layer

License File Protection

• Signed Content: Any modification invalidates signature
• Customer Binding: License tied to specific customer ID
• Hardware Fingerprint: Optional machine binding available
• Revocation Support: Central revocation via API

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📊 Security Levels

Level	Description	Features
QUANTUM_SECURED	Full quantum entropy	Real QCOS entropy, highest security
HYBRID_SECURED	Mixed entropy source	QCOS + local QRNG fallback
CRYPTO_SECURED	Cryptographic PRNG	When quantum unavailable

Fallback Behavior

# Priority order for entropy sources
1. QCOS API (real quantum hardware)
2. Local Qiskit Aer simulator  
3. Cryptographic CSPRNG (os.urandom)

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🔍 Audit Trail

What's Logged

Every license operation is logged for audit:

{
  "timestamp": "2025-12-26T15:30:00Z",
  "operation": "generate_license",
  "customer_id": "cust_abc123",
  "end_customer_id": "customer@company.com",
  "license_key": "QLOCK-7A3F-****-****",
  "qcos_job_id": "job_xyz789",
  "ip_address": "203.0.113.42",
  "user_agent": "QuantumLockSDK/2.0.0"
}

Compliance

• GDPR: Customer data handling compliant
• SOC 2: Security controls in place
• ISO 27001: Information security management

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🚨 Threat Model

Protected Against

Threat	Protection
Key prediction	Quantum entropy unpredictable
License forgery	SHA3-512 signature verification
Reverse engineering	Nuitka compilation
Man-in-the-middle	TLS 1.3 + certificate pinning
Replay attacks	Quantum nonce in signatures
Clock manipulation	Server timestamp validation

Not Protected Against

Threat	Mitigation
Memory inspection	Use process isolation
Root access	Hardware security module (HSM) option
Legitimate key sharing	Machine fingerprinting option

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📞 Security Contact

Found a vulnerability? Contact us:

• Security Email: security@softquantus.com
• PGP Key: Available at https://softquantus.com/.well-known/security.txt
• Bug Bounty: Active program for responsible disclosure

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