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System and method for authenticating a power source

  • US 20070260892A1
  • Filed: 05/08/2006
  • Published: 11/08/2007
  • Est. Priority Date: 05/08/2006
  • Status: Abandoned Application
First Claim
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1. A system, comprising:

  • a battery including a first encryption engine storing a first key; and

    a computing device including a microcontroller and a second encryption engine storing a second key, wherein, when the microcontroller detects a coupling of the battery to the computing device, the microcontroller issues a challenge to the first encryption engine and the second encryption engine, wherein the first encryption engine generates the first response as a function of the challenge, the first key and a predefined algorithm, and the second encryption engine generates the second response as a function of the challenge, the second key and the predefined algorithm, and wherein the microcontroller compares the first and second responses to authenticate the battery.

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