Securing media content with steganographic encoding
DC CAFCFirst Claim
Patent Images
1. A method comprising:
- receiving audio or image content;
steganographically encoding auxiliary information in the audio or image content,wherein the steganographic encoding includes a local strength that varies in accordance with perceptual attributes of the audio or image content, andwherein the auxiliary information indicates permitted usage rights associated with the audio or image content; and
distributing the steganographically encoded audio or image content.
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Abstract
Methods and apparatus to provide security for audio or image content are provided. In one embodiment, a method includes receiving audio or image content and steganographically encoding auxiliary information in the audio or image content. The auxiliary information carries or links to permitted usage rights that are associated with the audio or image content.
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Citations
19 Claims
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1. A method comprising:
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receiving audio or image content; steganographically encoding auxiliary information in the audio or image content, wherein the steganographic encoding includes a local strength that varies in accordance with perceptual attributes of the audio or image content, and wherein the auxiliary information indicates permitted usage rights associated with the audio or image content; and distributing the steganographically encoded audio or image content. - View Dependent Claims (2, 3)
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4. A method of controlling use of audio or image content comprising:
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receiving audio or image content including steganographic encoding therein, the steganographic encoding including a local strength that varies in accordance with perceptual attributes of the audio or image content, and the auxiliary information indicates permitted usage rights associated with the audio or image content; decoding the steganographic encoding there from to obtain the auxiliary information; determining the permitted usage rights; and controlling use of the audio or image content in accordance with the permitted usage rights.
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5. A method comprising:
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receiving data representing audio or image content; steganographically encoding auxiliary information in the data representing audio or image content, wherein the auxiliary information is redundantly embedded in the data representing audio or image content according to different embedding forms, and wherein said auxiliary information indicates permitted usage rights associated with the audio or image content; and distributing the steganographically encoded audio or image content. - View Dependent Claims (6, 7, 8)
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9. A method of controlling use of audio or image content comprising:
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receiving audio or image content including steganographic encoding therein, the steganographic encoding comprising auxiliary information redundantly embedded in data representing the audio or image content according to different embedding forms, and the auxiliary information indicating permitted usage rights associated with the audio or image content; decoding the steganographic encoding there from to obtain the auxiliary information; determining the permitted usage rights from the auxiliary information; and controlling use of the audio or image content in accordance with the permitted usage rights.
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10. A method comprising:
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receiving audio or image content; steganographically encoding auxiliary information in the audio or image content, wherein the steganographic encoding includes a local strength that varies in accordance with perceptual attributes of the audio or image content, and wherein the auxiliary information refers to an on-line resource that includes usage rights associated with the audio or image content; and distributing the steganographically encoded audio or image content. - View Dependent Claims (11, 12)
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13. A method of controlling use of audio or image content comprising:
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receiving audio or image content including steganographic encoding, the steganographic encoding including a local strength that varies in accordance with perceptual attributes of the audio or image content, and the auxiliary information referring to an on-line resource that includes usage rights associated with the audio or image content; decoding the steganographic encoding from audio or image content to obtain the auxiliary information; communicating with the on-line resource referred to by the auxiliary information; obtaining the permitted usage rights from the on-line resource; and controlling use of the audio or image content in accordance with the permitted usage rights.
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14. A method comprising:
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receiving audio or image data, wherein the audio or image data comprises header information associated therewith; steganographically encoding auxiliary information in the audio or image content, wherein the auxiliary information corresponds to at least a portion of the header information, and wherein the auxiliary information and the at least a portion of the header information indicate permitted usage rights associated with the audio or image content; and encrypting the steganographically encoded audio or image content.
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15. A method comprising:
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obtaining audio or image content; steganographically encoding auxiliary information in the audio or image content, wherein the auxiliary information refers to a data structure that includes usage rights associated with the audio or image content; and distributing the steganographically encoded audio or image content. - View Dependent Claims (16, 17, 18, 19)
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Specification