One-Time Password Resend
After the cardholder receives the OTP on their mobile phone, they enter it into the form
that is displayed on the merchant terminal. After entering the password, the cardholder
presses
Enter
and the password is returned to the issuer to
verify that the OTP matches what was sent to the cardholder. When the response from the
issuer is an invalid or incorrect OTP, resend OTP can be triggered. The request includes
the original
consumerAuthenticationInformation.authenticationTransactionId
that was returned in the Payer Authentication Enrollment response. The transaction ID
enables the matching of the original OTP that was sent to the cardholder with the OTP
that the cardholder entered into the terminal. After the OTP match is made, the
cardholder is authenticated and can then be validated. The process for running this service is the same one used to generate the original OTP
except for including the ID generated by the response. Refer to the One-Time Password Generation section for a
list of required and optional fields used in Payer Authentication Enrollment when
resending the password to the issuer.