Sebastien Rousseau
Portrait noir et blanc de Sebastien Rousseau

Sebastien Rousseau

Sécuriser l'avenir de la banque
avec l'IA agentique
et la cryptographie post-quantique.

Paiements open source, sécurité post-quantique et IA appliquée pour les services financiers.

Soft natural light over a modern architectural space, representing dependable financial infrastructure.

What I build

Open source pour l'avenir de la finance.

Payments

ISO 20022, end to end: pain.001, pacs.008, camt.053, and acmt.001. Adopt one library at a time.

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Security

Post-quantum primitives: ML-KEM (CRYSTALS-Kyber, NIST FIPS 203) and hashing, ready to pilot today.

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Tooling

Audited Rust libraries and a code security scanner, signed and shipped with a software bill of materials.

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Proof

En chiffres.

37.1MOpen-source downloads
663GitHub stars
84Sigstore-signed articles
19Years in payments and banking
Isometric render of an illuminated processor, representing the cryptographic foundations of payments.

EPAA · septembre 2025

Pourquoi le secteur des paiements doit agir maintenant.

Regulators are treating harvest-now-decrypt-later as a credible present risk. This paper, produced for the Emerging Payments Association Asia, sets out the structural threat and the case for coordinated action across wholesale payment rails.

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