MAINTENANCE ELECTRONIC PAYMENT AUTHORIZATION

Brand	Owner (click to sort)	Address	Description
VITAL MERCHANT SERVICES	Vital Processing Services	8320 South Hardy Drive Tempe AZ 852842007	Maintenance of electronic payment authorization terminals and computer hardware;MERCHANT SERVICES;
VITAL TERMINAL MANAGEMENT SERVICES	TSYS ACQUIRING SOLUTIONS	8320 SOUTH HARDY DRIVE TEMPE AZ 852842007	Maintenance of electronic payment authorization terminals and computer hardware;TERMINAL MANAGEMENT SERVICES;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

A method is provided for conducting an electronic transaction with a payment account number having a certain amount of available funds, using a payment network and a "check site". The method comprises the following steps: (a) generating a secret key associated with the payment account number; (b) using the secret key to generate a message authentication code ("MAC") specific to the transaction; (c) generating an authorization request message including the message authentication code; (d) forwarding the authorization request message over the payment network to the check site for verifying the authenticity of the MAC; (e) verifying the message authentication code by the check site using the secret key; (f) responding to the authorization request message over the payment network based on the available funds and the transaction amount.