Method for indivisibly modifying plurality of sites in a microcircuit card non volatile memory, in particular contactless card

Method for indivisibly modifying plurality of sites in a microcircuit card non volatile memory, in particular contactless card

  • CN 1,296,601 A
  • Filed: 04/09/1999
  • Published: 05/23/2001
  • Est. Priority Date: 04/09/1998
  • Status: Abandoned Application
First Claim
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1. a method of revising the nonvolatile memory contents of microcircuit card is in particular untouchable card,In the described method, card temporarily is coupled to a terminating machine when carrying out transaction, be in particular far-end booking transaction, transaction comprises that terminating machine adds a plurality of modify instructions to card, each self-contained at least one record operation is write down the individual data item that described instruction indicates in card file, Ji Lu individual data item is irrelevant mutually each other in this way, it is characterized in thatDescribed method comprises card and carries out the following step:

  • A) when the corresponding individual instructions that receives from terminating machine, revise card file content via write down each described independent information item in card file temporarily, and previous corresponding these the numerical value of forfeiture; and

    thenB) finish to revise, comprise and confirm all or be abandoned all, and operation is subsequently listed consideration in all in the instruction that step a) is carried out, otherwise invalid all.

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