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Method to Protect Software Against Unwanted Use with a "Temporal Dissociation" Principle

  • US 20070283437A1
  • Filed: 08/13/2007
  • Published: 12/06/2007
  • Est. Priority Date: 06/25/2002
  • Status: Abandoned Application
First Claim
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1. A method to protect software comprising:

  • storing a first portion of the software on a first unit, the first unit comprising a memory and a processor;

    storing a second portion of the software on a second unit, the second unit comprising a secure processor and a secure memory, where the second portion of the software is secret and the first and second portions of the software forming a single program; and

    executing the single formed program by utilizing the first and second portions of the software, wherein the secret second portion of the software comprises at least two computing operations, and wherein portions of the at least two computing operations are interleaved with each other for transmission from the second unit to the first unit and vise versa.

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