cvv

Aug 16, 2016 at 5:11 AM
i understand how calculate a cvv with the source code for masters and visa but i don't understand the CVK pairs. Can you give more insight about cvk pair and if possible state the cvk pair for both visacard and mastercard. This is being used for project purposes... i lost the contact of my helper. please contact me again. need your help.. skydarrenhome@hotmail.com