Electronic transaction system, has card functioning on basis of pre-coding by secret number e.g. personal identification number, generated electronically with two magnetic strips

摘要

The system has a card functioning on a basis of pre-coding by a secret number e.g. personal identification number, generated electronically with two magnetic strips for assuring anonymity of user in an electronic transaction on an Internet. The secret number is printed in the card and stored in a central server of an enterprise.