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Data modification for magnetic cards and devices

  • US 8,960,545 B1
  • Filed: 11/16/2012
  • Issued: 02/24/2015
  • Est. Priority Date: 11/21/2011
  • Status: Active Grant
First Claim
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1. A method comprising:

  • generating a magnetic stripe message;

    computing an LRC based on the magnetic stripe message;

    comparing the computed LRC to a list of LRC exceptions; and

    changing a data value in the magnetic stripe message based upon a positive comparison,wherein the computed LRC changes based on the changed data value.

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