Parameter 

Node Type 

Data Type 

Min Length 

Max Length 

Description 

ElectronicCommerceIndicator 

tag 

A 

0 

More commonly known as the ECI, it describes for virtual transactions what steps were taken to secure and authenticate the transaction. Values are the following subset of CardHolderPresence values: ThreeDSecure, ThreeDSecureAttempted, SecureChannel and ClearChannel 

CardHolderAuthenticationData 

tag 

Base64 

28 

28 

For usage with Verified by Visa / MasterCard SecureCode. The CAVV or UCAF field depending on whether the card is VISA or Master card. Note: Original binary format length = 20 bytes. Mandatory when ElectronicCommerceIndicator = ThreeDSecure 

CardHolderAuthenticationID 

tag 

Base64 

28 

28 

For usage with Verified by Visa / MasterCard SecureCode. The Transaction ID. Note: Original binary format length = 20 bytes. Mandatory when ElectronicCommerceIndicator = ThreeDSecure  

ThreeDSecure_RequestID 

Tag 

Guid 

38 

The RequestID that was returned as part of the Enrollment Check that will be used to retrieve data for the Authentication Validation 

ThreeDSecure_ACS_URL 

Tag 

URL 

No Limit 

URL of the Access Control Server of the card-issuing bank where you need to send the ThreeDSecure_PAReq so that the customer can be authenticated. The field length can be very large. 

ThreeDSecure_PAReq 

Tag 

Base64 

No Limit 

Digitally signed payer authentication request message that contains a unique transaction ID.The field length can be very large. 

ThreeDSecure_SignedPARes 

Tag 

 Base64 

No Limit  

Digitally signed PARes message that contains the authentication result.The field length can be very large. 

ThreeDSecure_VEResEnrolled 

Tage 

A 

1 

1 

Indicator that shows whether the cardholder is participating in 3DS.