One-Time Password Generation
When the cardholder is being authenticated, the Payer Authentication Enrollment service
is called sending a one-time password (OTP) to the cardholder. The merchant is notified
to display a merchant-branded page on the terminal where the cardholder can enter the
OTP they received. This OTP is returned to the issuer for validation. This section lists
the API fields used to generate and send the OTP to the cardholder, explains how to call
this service, and provides samples of calling the service.
The
consumerAuthenticationInformation.authenticationTransactionId
field that is returned in the response must be included for reference when the password
entered by the cardholder is sent.