PROGRAM INSTRUMENTATION METHOD AND APPARATUS FOR CONSTRAINING THE BEHAVIOR OF EMBEDDED SCRIPT IN DOCUMENTS
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United States of America Patent
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Issued Date -
Apr 3, 2008
app pub date -
Jun 20, 2007
filing date -
Jun 26, 2006
priority date (Note) -
Abandoned
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Abstract
A method and apparatus is disclosed herein for constraining the behavior of embedded script in documents using program instrumentation. In one embodiment, the method comprises downloading a document with a script program embedded therein, inspecting the script program, and rewriting the script program to cause behavior resulting from execution of the script to conform to one or more policies defining safety and security. The script program comprises self-modifying code (e.g., dynamically generated script).
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