Method of modifying the functions performed by a command set of a smart card
IC card system and method for securing the system
Method and apparatus for defining private currencies
Access control/crypto system Patent #: 6351813
ApplicationNo. 09745984 filed on 12/21/2000
US Classes:705/65, Including intelligent token (e.g., electronic purse)705/44, Requiring authorization or authentication705/64, Secure transaction (e.g., EFT/POS)705/67, Including authentication713/172, Intelligent token235/380, Credit or identification card systems235/492, Conductive708/144, User definable key705/41, Having programming of a portable memory device (e.g., IC card, "electronic purse")713/185, Using record or token705/23Input by product or record sensing (weighing, scanner processing)
ExaminersPrimary: Trammell, James P.
Assistant: Worjloh, Jalatee
Attorney, Agent or Firm
Foreign Patent References
International ClassesG06F 1760
AbstractThe present invention describes a device and a method for performing cashless payments between a customer and a dealer. The advantages of the present invention lie in that payments can be performed over the Internet without implementing special payments commands stored in the customer chip card. It is sufficient to use a normal chipcard with a file structure. Such a file structure can be used in different file system cards and does not depend on the chipcard's operating system. Therefore, the inventive method can be used in a variety of chipcards without implementing special payments commands. The protocol is designed such that per payment only three steps of communication are required.