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Systems and methods for fuel dispenser security

  • US 9,139,414 B2
  • Filed: 11/18/2013
  • Issued: 09/22/2015
  • Est. Priority Date: 11/18/2013
  • Status: Active Grant
First Claim
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1. A fuel dispenser, comprising:

  • a flow meter configured to measure a quantity of fuel dispensed by the fuel dispenser; and

    a computer processor coupled to a memory and configured to selectively prevent fuel from being dispensed through the flow meter;

    wherein the computer processor is programmed to;

    detect a change in calibration of the flow meter;

    prevent fuel from being dispensed using the flow meter when a calibration change is detected until a verification function is performed;

    generate a challenge that includes a session password;

    encrypt the challenge using a secret key stored in the memory of the fuel dispenser;

    provide the encrypted challenge to a user seeking to perform the verification function; and

    allow the verification function to be performed only when a password matching the session password is received from the user.

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