Method of authorising a transaction between a computer and a remote server and communications system, with improved security

摘要

Method of authorising a transaction between a computer and a remote server and communications system.

The method comprises the following steps:
connecting a portable card reader to a computer;
reading of the card data by the portable card reader;
reading of an identification code from a separate RFID tag by means of a reading unit situated in the card reader;
sending at least one item of sensitive card identification data and the identification code to a server;
searching for the item of sensitive identification data - unique code set in an electronic memory of the management server, and also the identification code - unique code set or the identification code - item of sensitive data set;
if the above searches do not produce positive results, generation of an instruction denying said transaction.