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Apparatus and method for unilaterally loading a secure operating system within a multiprocessor environment

  • US 20030084346A1
  • Filed: 11/01/2001
  • Published: 05/01/2003
  • Est. Priority Date: 11/01/2001
  • Status: Active Grant
First Claim
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1. A method comprising:

  • disregarding a received load instruction when a currently active load operation is detected;

    otherwise, directing, in response to the received load instruction, a memory protection element to form a secure memory environment including one or more protected memory regions, such that unauthorized read/write access to the one or more protected memory regions is prohibited; and

    storing, within a digest information repository, a cryptographic hash value of the one or more protected memory regions, thereby enabling establishment of security verification of the secure memory environment.

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