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Key camouflaging method using a machine identifier

  • US 8,533,460 B2
  • Filed: 11/03/2010
  • Issued: 09/10/2013
  • Est. Priority Date: 11/06/2009
  • Status: Expired due to Fees
First Claim
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1. A method of generating a user one-time passcode (OTP) for a provider account, the method comprising:

  • providing a fingerprint code (FPC) to a user device using a provisioning server;

    collecting FPC information from the user device using the fingerprint code, wherein the FPC information is unique to the user device;

    generating a machine effective speed calibration (MESC) using the FPC information and a MESC generator;

    camouflaging at least one key with a personal identification number (PIN) and the MESC to provide at least one camouflaged key;

    wherein the at least one camouflaged key is defined by the provider account and camouflaged with the personal identification number (PIN) and the (MESC);

    generating a cardstring using the at least one camouflaged key and the provisioning server prior to providing the cardstring to a passcode application, wherein the cardstring is defined by the at least one camouflaged key and configured to generate the OTP for the provider account;

    providing the passcode application to the user device;

    providing the cardstring to the passcode application on the user device;

    storing the cardstring on the user device;

    providing the PIN and the MESC to the passcode application;

    wherein the passcode application is configured to generate a passcode configured as the user OTP for the provider account using the cardstring and the PIN and the MESC; and

    generating the user OTP on the user device using the passcode application and the cardstring on the user device.

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