Changes made on 2020-05-18 are delineated below.

Additions are underlined in Green. Deletions are underlined in Red. Modifications are underlined in Blue.

Change occurred on : Authenticate Request/Response

cmpi_authenticate Response Message

This message is generated in response to the cmpi_authenticate request message.

Field Name

Description

CavvAlgorithm

Indicates the algorithm used to generate the CAVV value.

Possible Values:

2 - CVV with ATN

3 - Mastercard SPA algorithm

NOTE: Only returned for MasterCard SecureCode transaction (3DS 1.0).