Method and a system for embedding textual forensic information
First Claim
Patent Images
1. A method for automatically embedding information in a digital text, said method comprising:
- classifying a type of said digital text;
identifying a plurality of portions of said digital text that are suitable for introducing modifications into said portions of said digital text;
identifying respective textual modifications suitable for introduction into at least some of said suitable portions of said digital text, wherein a textual modification comprises replacing a portion of digital text with a specified alternate portion of digital text, said identifying respective textual modifications being in accordance with said classified type of said digital text;
selecting at least some of said identified modifications for introduction into said digital text, said selection of said modifications being operable to represent said information; and
performing said selected modifications on said digital text, thereby to embed said information.
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Abstract
A method for automatically embedding information in a digital text, said method comprising: identifying a plurality of positions, in said digital text, that are suitable for introducing modifications into said digital text; identifying modifications suitable for introduction into at least some of said suitable positions in said digital text; selecting at least some of said identified modifications for introduction into said digital text, said selection of said modifications being operable to represent said information; and performing said selected modifications on said digital text, thereby to embed said information.
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Citations
28 Claims
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1. A method for automatically embedding information in a digital text, said method comprising:
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classifying a type of said digital text; identifying a plurality of portions of said digital text that are suitable for introducing modifications into said portions of said digital text; identifying respective textual modifications suitable for introduction into at least some of said suitable portions of said digital text, wherein a textual modification comprises replacing a portion of digital text with a specified alternate portion of digital text, said identifying respective textual modifications being in accordance with said classified type of said digital text; selecting at least some of said identified modifications for introduction into said digital text, said selection of said modifications being operable to represent said information; and performing said selected modifications on said digital text, thereby to embed said information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 26, 27, 28)
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17. A method for automatically embedding information in a digital text, said method comprising:
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classifying a type of said digital text; identifying a plurality of portions of said digital text, that are suitable for introducing textual modifications into said portions of said digital text; identifying respective textual modifications suitable for introduction into at least some of said suitable portions of said digital text, wherein said identified modifications comprise replacing a text of at least one word within a specified one of said portions with a text of at least one specified replacement word, said identifying respective textual modifications being in accordance with said classified type of said digital text; selecting at least some of said identified modifications for introduction into said digital text, said selection of said modifications being operable to represent said information, selected modifications comprising at least one of said identified word replacement modification; and performing said selected modifications on said digital text, thereby to embed said information, and wherein said selected modifications maintain a meaning of said digital text. - View Dependent Claims (18, 19, 20)
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21. A method for providing identifiable copies of a digital text, said method comprising:
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classifying a type of said digital text; identifying a plurality of portions of said digital text suitable for introducing textual modifications into said digital text; identifying respective textual modifications suitable for introduction into at least some of said suitable portions of said digital text, wherein a textual modification comprises replacing a portion of digital text with a specified alternate portion of digital text, said identifying respective textual modifications being in accordance with said classified type of said digital text; selecting different combinations of said modifications to form different copies of said digital text, said different combinations of modifications being operable to uniquely identify a respective copy; selecting one of said combinations of modifications for introduction into said digital text; and performing said selected modifications to obtain an identifiable copy of said digital text. - View Dependent Claims (22, 23, 24, 25)
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Specification