Learning Path

QLAB

Post-Quantum PKI Lab

QLAB is an educational resource to help teams understand PKI and Post-Quantum Cryptography (PQC) migration through hands-on practice.

“The PKI is the tool for transition — post-quantum is an engineering problem, not magic.”

What you’ll learn:

• Understand the quantum threats to current cryptography (SNDL, TNFL)
• Assess your PQC migration urgency using Mosca’s theorem
• Issue classical and post-quantum certificates with the same workflow
• Build complete PQC hierarchies (Root CA → Issuing CA → End-Entity)
• Deploy hybrid certificates for backward-compatible migration
• Manage full lifecycle: revocation, OCSP, CRL
• Sign code, timestamp documents, and create LTV signatures
• Encrypt with ML-KEM key encapsulation (the new pattern)
• Practice crypto-agile CA migration

QLAB uses Qpki for all PKI operations.

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Installation

Prerequisites:

• Git — for cloning the repository
• Bash — for running demos (Git Bash or WSL on Windows)
• OpenSSL 3.x — optional, for cross-verification commands

macOS / Linux

git clone https://github.com/remiblancher/qlab.git
cd qlab
./tooling/install.sh

Windows

# 1. Install QPKI (PowerShell)
git clone https://github.com/remiblancher/qlab.git
cd qlab
.\tooling\install.ps1

# 2. Run demos (requires Git Bash or WSL)
./journey/00-revelation/demo.sh

Note: The install script works in PowerShell, but the demos require Git Bash or WSL.

Getting Started

./journey/00-revelation/demo.sh

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Learning Path

Total time: ~2h | Quick path: 20 min (Revelation + Quick Start)

🗺️ Journey Map

┌───────────────────────────────────────────────────────────────────────┐
│  AWARENESS              BUILD                    LIFECYCLE            │
│  ┌──────┐ ┌──────┐      ┌──────┐ ┌──────┐    ┌──────┐ ┌──────┐       │
│  │Lab-00│→│Lab-01│  →   │Lab-02│→│Lab-03│ →  │Lab-04│→│Lab-05│       │
│  │Why?  │ │How?  │      │Chain │ │Hybrid│    │CRL   │ │OCSP  │       │
│  └──────┘ └──────┘      └──────┘ └──────┘    └──────┘ └──────┘       │
│                                                       ↓              │
│  MIGRATION              ENCRYPTION           LONG-TERM SIGS          │
│  ┌──────┐               ┌──────┐            ┌──────┬──────┬──────┐   │
│  │Lab-10│  ←            │Lab-09│    ←       │Lab-06│Lab-07│Lab-08│   │
│  │Agile │               │KEM   │            │Sign  │Time  │LTV   │   │
│  └──────┘               └──────┘            └──────┴──────┴──────┘   │
└───────────────────────────────────────────────────────────────────────┘

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🚀 Awareness

#	Lab	Time	Takeaway
0	The Quantum Threat	10 min	Your data is already being recorded
1	Classical vs Post-Quantum	10 min	Same workflow, just different algorithms

↓ Let’s build!

📚 Build

#	Lab	Time	Takeaway
2	Full PQC Chain	10 min	Build a 100% PQC chain
3	Hybrid	10 min	Or hybrid to coexist with legacy

↓ PKI operations stay identical

⚙️ Lifecycle

#	Lab	Time	Takeaway
4	Revocation	10 min	Revoke = same command
5	OCSP	10 min	Verify = same protocol

↓ Sign, timestamp, archive for decades

💼 Long-Term Signatures

#	Lab	Time	Takeaway
6	Code Signing	10 min	Signatures that outlive the threat
7	Timestamping	15 min	Prove WHEN, forever
8	LTV	15 min	Bundle proofs for offline verification

↓ Except for encryption…

🔐 Encryption

#	Lab	Time	Takeaway
9	Encryption	15 min	KEM keys require a new pattern: attestation

↓ And for production migration?

🧭 Migration

#	Lab	Time	Takeaway
10	Crypto-Agility	15 min	CA versioning + trust bundles

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Algorithms

Post-Quantum (NIST 2024)

• ML-DSA (FIPS 204) — Lattice-based signatures → replaces ECDSA
• SLH-DSA (FIPS 205) — Hash-based signatures (conservative)
• ML-KEM (FIPS 203) — Key encapsulation → replaces ECDH

Hybrid (Transition)

• Catalyst certificates (ITU-T X.509 9.8)
• Composite certificates (supported, no lab demo)

See Qpki for the full list of supported algorithms.

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Resources

• Qpki — The PKI toolkit used by QLAB
• Glossary — PQC and PKI terminology
• Troubleshooting — Common issues and solutions
• NIST Post-Quantum Cryptography
• FIPS 203 (ML-KEM)
• FIPS 204 (ML-DSA)
• ITU-T X.509 (Hybrid Certificates)

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License

Apache License 2.0 — See LICENSE