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Temperature-Profiled Device Fingerprint Generation and Authentication from Power-Up States of Static Cells

  • US 20090326840A1
  • Filed: 06/26/2008
  • Published: 12/31/2009
  • Est. Priority Date: 06/26/2008
  • Status: Active Grant
First Claim
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1. A method for generating at least one identifier for uniquely identifying an electronic device, wherein the electronic device contains a number of static storage elements, and wherein the method comprises:

  • cycling power provided to the static storage elements multiple times;

    reading values of the static storage elements after the power cycling to collect a set of power-up states;

    repeating the cycling and reading for multiple environmental temperatures of the device to collect the sets of power-up states for the multiple environmental temperatures; and

    computing the at least one identifier from the collected sets of power-up states.

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