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Method and system for performing a transaction using a dynamic authorization code

  • US 20070260544A1
  • Filed: 05/10/2007
  • Published: 11/08/2007
  • Est. Priority Date: 11/10/2004
  • Status: Active Grant
First Claim
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1. A method for authorizing a transaction over a transaction network employing a standardized message format having a data portion reserved for a static PIN, comprising:

  • receiving dynamic code data based on a dynamic code;

    preparing a transaction message in said standardized message format, said dynamic code data inserted in said data portion reserved for said static PIN;

    transmitting said traction message to an authorization entity over a communications link;

    receiving a response from said authorization entity; and

    authorizing a transaction in response to said receiving step.

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