---
hip: 0005
title: Post-Quantum Security for AI Infrastructure
author: Hanzo AI Team
type: Standards Track
category: Security
status: Draft
created: 2024-12-20
requires: LP-100
---


# HIP-0005: Post-Quantum Security for AI Infrastructure

## Abstract

This proposal mandates the integration of NIST Post-Quantum Cryptography standards across all Hanzo AI infrastructure, ensuring quantum-resistant security for AI models, data, and communications. Building on Lux Network's PQC implementation (LP-100), this extends quantum resistance to AI-specific operations.

## Specification

### PQC Algorithm Adoption

Inherit from Lux Network (LP-100):
- **ML-KEM-768**: Default key encapsulation
- **ML-DSA-65**: Default digital signatures
- **Hybrid Mode**: ML-KEM + X25519 for defense-in-depth

### AI-Specific Security Layers

#### Model Protection
```rust
pub struct SecureModel {
    // Model weights encrypted with ML-KEM
    encrypted_weights: Vec<u8>,
    // Signature for integrity
    signature: MlDsaSignature,
    // Encryption key wrapped with KEK
    wrapped_key: WrappedKey,
    // Privacy tier configuration
    privacy_tier: PrivacyTier,
}
```

#### Secure Inference Pipeline
1. **Input Encryption**: Client encrypts input with ML-KEM
2. **TEE Processing**: Computation in secure enclave
3. **Output Encryption**: Results encrypted before transmission
4. **Audit Trail**: ML-DSA signed logs

#### API Authentication
```json
{
  "api_key_id": "ak_1234",
  "timestamp": 1703001234,
  "nonce": "random_value",
  "signature": {
    "algorithm": "ML-DSA-65",
    "value": "base64_signature"
  }
}
```

### Privacy Tiers for AI

| Tier | Use Case | Security Features |
|------|----------|-------------------|
| 0 | Public models | Basic PQC encryption |
| 1 | User data | + At-rest encryption |
| 2 | Proprietary models | + TEE processing |
| 3 | Sensitive inference | + GPU CC (H100) |
| 4 | Classified AI | + Full TEE-I/O |

### Key Management

#### Hierarchical Key Structure
```
Root Key (ML-KEM-1024)
├── Model Encryption Keys (ML-KEM-768)
├── API Authentication Keys (ML-DSA-65)
├── Data Encryption Keys (ML-KEM-768)
└── Session Keys (Hybrid Mode)
```

#### Key Rotation Schedule
- **Root Keys**: Annual rotation
- **Model Keys**: Per version
- **API Keys**: Monthly rotation
- **Session Keys**: Per connection

### Implementation Requirements

#### For AI Services
1. All model storage uses ML-KEM encryption
2. API requests require ML-DSA signatures
3. Inter-service communication uses hybrid mode
4. Audit logs are cryptographically signed

#### For Client SDKs
```python
from hanzo import SecureClient

client = SecureClient(
    api_key="...",
    pqc_enabled=True,  # Default
    privacy_tier=2
)

# Automatic PQC encryption/signing
response = client.complete(
    model="HMM-32B",
    messages=[...]
)
```

lementation

## References

1. [LP-100: NIST PQC Integration for Lux](https://github.com/luxfi/lps/blob/main/LPs/lp-100.md)
2. [NIST PQC Project](https://csrc.nist.gov/projects/post-quantum-cryptography)
3. [HIP-1: Hanzo Multimodal Models](./hip-1.md)

## Copyright

Copyright and related rights waived via [CC0](https://creativecommons.org/publicdomain/zero/1.0/).