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Method for ensuring boot source integrity of a computing system

  • US 7,769,993 B2
  • Filed: 03/09/2007
  • Issued: 08/03/2010
  • Est. Priority Date: 03/09/2007
  • Status: Active Grant
First Claim
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1. A boot module for use in enforcing booting from a designated memory, the boot module comprising:

  • a processor;

    a memory storing instructions executable by the processor and data corresponding to an authorized boot sequence;

    a plurality ports coupled to the processor for monitoring a corresponding plurality of communication busses including a first bus for carrying signals related to a boot operation from an authorized location, and one or more additional busses capable of carrying signals related to a boot operation from an unauthorized location; and

    an output operable to disrupt operation of a computer when a boot operation from the unauthorized location is detected.

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