Sebastien Rousseau
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Постквантова криптографія

Articles on AI, post-quantum cryptography, ISO 20022 and the future of payments.

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Post-Quantum Cryptography

Криптографія на основі ґраток, стандарти NIST PQC, квантово-стійкі платежі та загроза «збираємо зараз, розшифровуємо пізніше». Дослідницькі нотатки, бібліотеки з відкритим кодом і плейбуки міграції для команд безпеки у фінансових послугах.

Post-quantum cryptography migration roadmap diagram — corporate banking infrastructure transitioning from RSA to ML-KEM and ML-DSA
Post-Quantum Cryptography · Pqc Migration · Corporate Banking

[UK DRAFT] Securing the Ledger: A Board-Level Guide to Post-Quantum Migration for Corporate Finance

· Sebastien Rousseau

Quantum risk has moved from research curiosity to active regulatory mandate. With the G7 roadmap published in janvier 2026, the EU, UK, and ASD timelines clarified, and the BIS Project Leap proving feasibility at the central-bank level, the question for boards is no longer whether to migrate — it is whether the migration can be completed before the cryptographic shelf-life of today's data expires.

Image generated using MidJourney - A Network of digital nodes in red and blue hues.
Post-Quantum Cryptography · Nist · Pqc Standardisation

[UK DRAFT] Quantum Lattice Crypto: Bug in Chen's LWE Attack

· Sebastien Rousseau

A bug in Yilei Chen's quantum LWE algorithm temporarily reprieves lattice-based cryptography. What it means for CRYSTALS-Kyber, Dilithium and the PQC roadmap.

Empowering Secure Communications in the Quantum Era with KyberLib
Kyberlib · Rust Crystals-Kyber · Post-Quantum Cryptography

[UK DRAFT] KyberLib: Rust CRYSTALS-Kyber for Post-Quantum

· Sebastien Rousseau

A Robust and Quantum-Safe Cryptography Implementation of the CRYSTALS-Kyber Algorithm, to Protect Your Data from Quantum Threats and Cryptanalytic Attacks.