availableAuthentication and authorization
What is transaction-bound approval?
Last reviewed 5 Sept 2026 · Review due 5 Mar 2027
Short answer
Transaction-bound approval ties a user’s or policy decision to a specific transaction payload so a generic login proof cannot be replayed for a different amount, payee or action. It strengthens authorization after authentication. Exact binding fields and cryptographic encoding depend on the confirmed product interface.
Limitations & conditions
- Binding formats are not invented here.
- Authentication alone is insufficient for high-risk payments.
Evidence
Standards education — authentication vs authorization
standards education · effective 2026-09-05 · retrieved 2026-09-05
Public referencekeyra.ie public corporate site
public corroboration · effective 2026-09-05 · retrieved 2026-09-05
Public reference