post https://api-sandbox-v2.openkeys.8429y94d.hml.fsapps.app/open-keys/itp/api/v2/enrollments/v2/payment-initiation//fido-sign-options
Endpoint to obtain the required parameters for FIDO2 authentication using previously registered credentials during Open Finance Brasil payment operations. This method generates a unique challenge for each call and returns parameters compatible with the WebAuthn navigator.credentials.get() API for verifying digital signatures. The enrollment must be in AUTHORISED status with valid associated FIDO2 credentials. Used in Journey without Redirection (JSR) for strong authentication before authorizing payment transactions.