Transaction system, portable device, terminal and methods of transaction

A method of mutually authenticating a transaction or a message between a Terminal (102) and a Smartcard (104), includes the steps of: transferring key data between a Terminal and a Smartcard; and generating a card key (Kd) at the Terminal (102) based on said key data wherein the generated card key (...

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Bibliographic Details
Main Authors LIN, BO, NEROT, SEBASTIEN CHARLES
Format Patent
LanguageEnglish
French
German
Published 17.07.2002
Edition7
Subjects
CALCULATING
CHECKING-DEVICES
COIN-FREED OR LIKE APPARATUS
COMPUTING
COUNTING
DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES
PHYSICS
SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR
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Summary:A method of mutually authenticating a transaction or a message between a Terminal (102) and a Smartcard (104), includes the steps of: transferring key data between a Terminal and a Smartcard; and generating a card key (Kd) at the Terminal (102) based on said key data wherein the generated card key (Kd) is equal to the card key of the Smartcard (104) thereby authenticating a valid Smartcard; and/or generating a Terminal identifier at the Smartcard (104) based on said key data wherein the generated Terminal identifier (IDt) is equal to the Terminal identifier (IDt) of the Terminal (102) thereby authenticating a valid Terminal (102). A Smartcard, a Terminal (102), a Smartcard command set, a method of generating a session key, a dynamic session key, a set of instructions, a Commit command (352, 354) and a roll-back mechanism are provided. This provides a high level of security, ensures data integrity and a fast commit processing and fast transaction time.
Bibliography:Application Number: EP20010400091