Server, terminal and secured transaction method

摘要

The server (3) has a data processing unit (31) to execute a transaction application (310) that controls a transaction terminal i.e. electronic payment terminal (2), by co-operating with an application (210) executed on a data processing unit (21) of the terminal, via a communication network (RC), by using a message generated from parameters (P), where the processing units are microprocessors. The transaction application utilizes instruction processing results received from the terminal for collecting and providing information necessary for transaction, to a server (4) of an acquiring entity. Independent claims are also included for the following: (1) a transaction terminal for realizing transaction between a carrier of a card read by a transaction terminal and a server of an acquiring entity via a communication network (2) a method for realizing transaction between a carrier of a card read by a transaction terminal and a server of an acquiring entity providing parameters defining information necessary for transaction, via a communication network.