Sebastien Rousseau
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Wholesale Payments Rails

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

TOPIC

Multi-rail strategy across cards, A2A, RTP, FedNow, open banking, and stablecoin corridors. Wholesale economics, settlement finality, and the BIS Project Agorá cross-border atomicity model.

Visual register for the wholesale-payments shift in 2026 — messaging migration giving way to programmable settlement across ISO 20022, tokenised deposits, real-time rails, and cross-border atomicity.
Biyan Kuɗi Na Wholesale · ISO 20022 · Tokenised Deposits

Index na Biyan Kuɗi na Wholesale a 2026: ISO 20022, Tokenised Deposits, Layukan Ainihin-Lokaci, da Settlement na Cross-Border

· Sebastien Rousseau

Tsarin index don auna shirin biyan kuɗi na wholesale a 2026: bin doka na structured-address na ISO 20022 kafin matakin Nuwamba 2026 na SWIFT, settlement na tokenised-deposit, atomicity na cross-border na BIS Project Agorá, jagoranci na layukan ainihin-lokaci, da ingancin ruwa. Kashi huɗu — cikar bayanan da aka tsara, mafi kyawun jagorancin layi, jinkirin settlement-finality, da rufin Agorá-corridor — suna mai da matsayin aikin biyan kuɗi shaida da ke shirye don kulawa.

Cryptographic key material drifting into deep blue water — symbolising harvest-now-decrypt-later capture of payment messages whose RSA and ECC envelopes will not survive a cryptanalytically relevant quantum computer
Post-Quantum Cryptography · Crypto-Agility · HNDL

Kayan Biya Bayan Quantum: Me Ya Sa Bankuna Za Su Iya Maye Gurbin Tsofaffin Hanyoyi Maimakon Daidaitawa

· Sebastien Rousseau

Tara-yanzu-warware-baya yana mai da saƙonnin biya na yau da TLS ke karewa zuwa fallasa da za a warware gobe. ML-KEM da ML-DSA sun ninka maɓallan RSA da ECC da tsofaffin hanyoyi ke ƙididdige su sau goma — daidaitawa tana haifar da tarwatsewa, jinkiri, da ƙarewar HSM. Yankin ginin 2026 shi ne ko a daidaita ko a maye gurbi kafin agogon tsari ya ƙare.

UK payments modernisation diagram showing stablecoins, tokenised deposits, open banking, AI agents, FCA regulation, PSR consolidation, and wholesale digital markets
Biyan Kuɗi Na UK · Payments Forward Plan · Stablecoins

UK Payments Forward Plan a 2026: Stablecoins, Open Banking, Adibassu da Aka Mai Da Su Tokens, da Biyan Kuɗi ta Wakili

· Sebastien Rousseau

UK Payments Forward Plan da fakitin manufofin Afrilu 2026 sun shimfiɗa tsari ɗaya ga biyan kuɗi na al'ada, stablecoins, adibassu da aka mai da su tokens, open banking, da biyan kuɗi ta wakili. Tambayar dabarun ga bankuna ita ce horon zane: wace data, hanyoyi, sarrafawa, alhakai, da hanyoyin aikin abokin ciniki suka dace tare — kuma yadda za a tabbatar wa masu tsari.