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Securing Executable Code Integrity Using Auto-Derivative Key

  • US 20100325446A1
  • Filed: 06/02/2010
  • Published: 12/23/2010
  • Est. Priority Date: 06/19/2009
  • Status: Abandoned Application
First Claim
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1. A method for protecting software from tampering, comprising:

  • processing, using a computer, first compiled software stored in a computer memory to generate a cryptographic key, the first compiled software configured to perform software protection functions and defined second functions distinct from the software protection functions when executed by a computer processor, and the cryptographic key consisting of a first portion of the first compiled software comprising executable code compiled from the software protection functions;

    encrypting a second portion of the first compiled software using the cryptographic key, to produce second compiled software comprising the first portion in unencrypted form and the second portion encrypted with the cryptographic key, wherein the second portion comprises executable code compiled from the defined second functions; and

    storing the second compiled software in a computer memory for distribution to a client device.

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