Banking & payments · CISO · Head of Payments · Cryptography Lead
Map cryptography across a bank payment rail before migration
Which payment services can move first without breaking clearing, fraud, or settlement dependencies?
Operational pain
Certificates, HSM keys, message signatures, and TLS dependencies are spread across gateways, switches, batch jobs, and counterparties, so a migration plan built from CMDB labels alone misses live cryptographic use.
Trigger
A board quantum-readiness deadline or payment-platform modernization programme needs a defensible scope.
QNSI contribution
Connect the decision to a controlled security path
Use QNSI inventory and policy records to classify payment-path algorithms, owners, data lifetime, and migration constraints, then stage approved NIST-standardized targets.
Decision artifact
A payment-rail cryptographic dependency register with owners, exception reasons, and an ordered transition backlog.
What still requires validation
The bank must validate scheme rules, counterparty interoperability, latency, HSM boundaries, and change-window controls.
External problem context
Primary sources
These sources establish the external requirement or risk context. They do not endorse HEOSSI or prove that QNSI completed this scenario.
Evidence boundary
What this page does—and does not—prove
This is a product evaluation pattern, not a customer case study, certification, legal opinion, regulator endorsement, or claim that a production deployment completed the described work.