Content objects with computer instructions steganographically encoded therein, and associated methods
First Claim
1. In a method of steganographically encoding a content object to include auxiliary information, an improvement wherein the auxiliary information comprises computer instructions.
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Accused Products
Abstract
Various improvements to digital watermarking are disclosed. For example, a digitally watermarked object can steganographically convey a payload that includes computer instructions (e.g., JAVA, ActiveX, or HTML) that—when decoded—control some manner of operation of an associated instruction processor. One application is a digital movie that, when double-clicked, automatically executes a watermark-embedded Java applet which links through a browser to the movie'"'"'s distributor. The user is then prompted to input a credit card number. After the number has been verified and a charge made, the applet releases the content of the file to the computer'"'"'s viewer for viewing of the movie.
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Citations
19 Claims
- 1. In a method of steganographically encoding a content object to include auxiliary information, an improvement wherein the auxiliary information comprises computer instructions.
- 6. In a method of processing a content object to decode auxiliary information steganographically encoded therein, an improvement wherein the auxiliary information comprises computer instructions, and the method includes providing said computer instructions to an instruction processor, and performing said instructions using said processor.
- 15. A storage medium having stored thereon a content object having computer instructions steganographically encoded therein.
Specification