vads_threeds_cavvAlgorithm

Description

Algorithm used by the ACS to generate the CAVV value.

It is populated by the 3DS authentication server (ACS) when the buyer has been correctly authenticated (vads_threeds_status equals "Y" or "A").

Format n1
Error code 55

Possible values

Value Description
0 HMAC
1 CVV
2 CVV_ATN
3 MasterCard SPA
Category 3DS Authentication.