Method for hiding a binary encoded message in an electronic document by modulating the case of the characters in a case-insensitive markup language
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United States of America Patent
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Jul 6, 1999
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N/A
app pub date -
Nov 14, 1996
filing date -
Nov 14, 1996
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Expired
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Abstract
Embodiments of the present invention are capable of hiding a message, such as, for example, a copyright notice or other indicium of authorship, in an electronic document. An illustrative embodiment of the present invention comprises encoding an electronic document with a plurality of tags from a case insensitive markup language; and modulating the case of at least one tag character in at least one of said plurality of tags with a binary string, wherein the binary string represents a message to be hidden in the electronic document.
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