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

摘要

A transaction between a computer, a remote server and a communications system can be authorized securely. A portable card reader is connected to a computer. Then, the portable card reader reads card data. The portable card reader reads an identification code from a separate RFID tag. Sensitive card identification data and the identification code is sent to a management server. The sensitive identification data is searched for a unique code set in an electronic memory of a management server. If the search does not produce a positive result, an instruction denying the transaction is generated.