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INTEGRATED CIRCUIT AND SYSTEM FOR INSTALLING COMPUTER CODE THEREON

  • US 20110145586A1
  • Filed: 12/14/2010
  • Published: 06/16/2011
  • Est. Priority Date: 12/14/2009
  • Status: Active Grant
First Claim
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1. An integrated circuit comprising a communication module for providing information representing technical capabilities of the integrated circuit to a computing device external to the integrated circuitwherein the integrated circuit further comprisesa combiner for obtaining a cryptographic challenge and for combining the information with the cryptographic challenge,a key storage comprising a cryptographic signing key, anda signer for producing a signature over the combined information and the challenge using the signing key,providing the information representing technical capabilities comprises providing the signature to the computing devicewherein the integrated circuit comprisesan application receiver for receiving application computer code and for installing the received application computer code in a code memory of the integrated circuit to enable the integrated circuit with new functionality, the application receiver being configured for receiving the application computer code after the providing of the signature to the computing device, the application receiver is configured to further receiver application information from the computing device, andwherein the combiner is configured for combining a further challenge with the application information after the application computer code has been installed.

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