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System and method for backing up data

  • US 20060218638A1
  • Filed: 05/25/2006
  • Published: 09/28/2006
  • Est. Priority Date: 01/22/2003
  • Status: Active Grant
First Claim
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1. A method for detecting file tampering on a computer, comprising:

  • generating a digital fingerprint for each file on the computer using a substantially collision-free algorithm; and

    comparing the digital fingerprints of the computer files with digital fingerprints of the computer files generated when the files were previously saved;

    wherein tampering exists on a file if the digital fingerprint of that file differs from the digital fingerprint generated when that file was previously saved.

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