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Method of authenticating an application program and a system therefor

  • US 6,202,924 B1
  • Filed: 03/26/1999
  • Issued: 03/20/2001
  • Est. Priority Date: 11/23/1995
  • Status: Expired due to Term
First Claim
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1. A method of authenticating an executable application program which has a unique signature associated therewith and which has been previously installed in a memory of a self-service terminal by a non-customer of the self-service terminal, the method comprising the steps of:

  • (a) retrieving the unique signature of the executable application program from the memory of the self-service terminal when a customer of the self-service terminal requests a desired self-service transaction to be carried out;

    (b) comparing the unique signature retrieved in step (a) with a number of signatures stored in a look-up table to determine if the unique signature matches one of the signatures stored in the look-up table; and

    (c) authenticating the executable application program to allow the executable application program to be executed only when a match occurs in step (b) and thereby to allow the self-service customer to complete the desired self-service transaction.

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