Secure credit/debit card authorization

This invention relates to methods for making a credit/debit card purchase without revealing the card number to the vendor (3) of services or goods. The card holder (1) is connected to a data base (5) and provides the card number, plus holder identity verification, to the data base. The data base the...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	COLBERT, RAYMOND OTTO
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CALCULATING CHECKING-DEVICES COIN-FREED OR LIKE APPARATUS COMPUTING CONVEYING COUNTING DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES HANDLING THIN OR FILAMENTARY MATERIAL PACKING PERFORMING OPERATIONS PHYSICS PNEUMATIC TUBE CONVEYORS SHOP CONVEYOR SYSTEMS STORING SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING ORTIPPING TRANSPORTING
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Beschreibung
Zusammenfassung:	This invention relates to methods for making a credit/debit card purchase without revealing the card number to the vendor (3) of services or goods. The card holder (1) is connected to a data base (5) and provides the card number, plus holder identity verification, to the data base. The data base then verifies whether the card holder is authorised to incur the expense of the purchase, and, if so, provides an authorisation indication or code to the vendor (3); the card number cannot be derived from the authorisation information, thus helping to preserve the secrecy of the card number.