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System-level chip identify verification (locking) method with authentication chip

  • US 8,797,139 B2
  • Filed: 02/23/2012
  • Issued: 08/05/2014
  • Est. Priority Date: 02/23/2012
  • Status: Active Grant
First Claim
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1. An electronic system comprising:

  • at least one authenticable electronic device having stored therein a unique identifier that uniquely identifies the electronic device, the electronic device being configured to communicate the unique identifier; and

    an authentication device having stored therein at least the unique identifier of each authenticable electronic device and a unique identifier that uniquely identifies the authentication device, the authentication device including a first unidirectional counter, wherein the authentication device is configured to communicate the unique identifiers and a counter value of the first unidirectional counter to a host device upon request, and wherein the counter value of the first unidirectional counter is configured to be compared with a value of a second unidirectional counter stored at the host device to authenticate the authentication device.

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