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METHOD OF PATCHING APPLICATIONS ON SMALL RESOURCE-CONSTRAINED SECURE DEVICES

  • US 20080022380A1
  • Filed: 05/24/2007
  • Published: 01/24/2008
  • Est. Priority Date: 05/25/2006
  • Status: Abandoned Application
First Claim
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1. A method for operating a computer to use a software application stored in a smart card to update the software application stored on the smart card, comprising:

  • partitioning the software application into a plurality of modules including a main program module;

    loading the software application from the smart card into the memory of a host computer to which the smart card is connected;

    executing the software application on the host computer;

    using the instructions of the software application;

    to establish a first communications channel between the software application and a remote patch server containing a patch for at least one partition of the software application;

    detecting that a patch is available for the at least one partition of the software application;

    downloading the at least one partition from the remote server into volatile memory allocated to the software application on the host computer via the first communications channel; and

    uploading the at least one partition from the volatile memory allocated to the software application to the smart card.

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