Sebastien Rousseau
Hoton Sebastien Rousseau

Sebastien Rousseau

Tabbatar da makomar banki
tare da agentic AI
da post-quantum cryptography.

Open-source payments, post-quantum security, and applied AI for financial services.

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

What I build

Open source for the future of 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

By the numbers.

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

Why the payments industry must act now.

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.

Read the white paper

Karanta sabbin bincike

From the desk.

Abstract horizon of converging signal lines — AI, synthetic media, and programmable-money rails resolving over a banking skyline, evoking a supervisory scan of emerging-technology risk for financial services in 2026
Emerging Technology · Horizon Scanning · FCA

Reading the Emerging-Technology Risk Horizon for Banks in 2026

TL;DR Karatu na asali na sararin haɗarin sabbin fasahohi ga bankuna a 2026 — hankalin da AI ta keɓance, laifin kuɗi na roba, da kuɗi mai iya shirya-shiri — da tsarin sigina-zuwa-kulawa, mai dogaro da Technology Horizon Scan 2026 na FCA.

Abstract distributed-ledger lattice resolving into a certified audit spine — visualising the shift from retrospective entity audits to continuous, cryptographically-verifiable blockchain assurance for wholesale banking
Agentic AI · AI Governance · Banking

The Agentic AI Index for Banks in 2026: Measuring Autonomy

TL;DR Ma'aunin Sarƙoƙin Bulokci Masu Takardar Shaida na 2026 yana ba bankuna Samfurin Balaga na Iyawa mai matakai biyar don ba da takardar shaida ga shugabancin littafi mai rarrabuwa, mutuncin yarjejeniya, sirri, tabbacin kwangilar wayo, da lura na bincike a kan DORA, PFMI na CPMI-IOSCO, ISO/IEC TC 307, ISO 42001, da Basel III.