Methods Utilizing Steganography
First Claim
1. A method comprising:
- obtaining access to a set of data corresponding to an image or video;
controlling a steganographic encoding detector to examine only a portion of the data, without examining the entire set of data, detecting plural-bit data from the portion of the data.
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Accused Products
Abstract
The present invention relates generally to steganography, digital watermarking and data hiding. In one embodiment a method is provided including: processing data representing content; analyzing the data to determine whether a plural-bit identifier is steganographically encoded therein, the plural-bit identifier encoded in the data through modifications to the data, the modifications steganographically hiding the presence of the plural-bit identifier; and upon detection of the plural-bit identifier, redundantly carrying out an action while attempting to conceal the action from one or more users of the content. Of course, other embodiments are described and claimed as well.
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Citations
20 Claims
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1. A method comprising:
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obtaining access to a set of data corresponding to an image or video;
controlling a steganographic encoding detector to examine only a portion of the data, without examining the entire set of data, detecting plural-bit data from the portion of the data. - View Dependent Claims (2, 3)
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4. A method comprising:
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obtaining data representing content;
analyzing the data to determine whether a steganographic signal is encoded therein, the steganographic signal being encoded in the data through modifications to the data, the modifications being made so as to conceal the presence of the steganographic signal to a causal human observer of the content;
upon detection of the steganographic signal, redundantly carrying out an action that is concealed from a user of the content. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12)
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13. A method comprising:
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processing data representing content;
analyzing the data to determine whether a plural-bit identifier is steganographically encoded therein, the plural-bit identifier encoded in the data through modifications to the data, the modifications steganographically hiding the plural-bit identifier;
upon detection of the plural-bit identifier, redundantly carrying out an action while attempting to conceal the action from one or more users of the content. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification