vads_threeds_cavvAlgorithm

Description

Algorithm used by the ACS to generate the value of the CAVV

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

Input and output field, returned in the response (IPN and Return URL).

Format n1
Error code 55

Possible values

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