Watermarking method and apparatus for tracking hacked content and method and apparatus for blocking hacking of content using the same

摘要

Watermarking method and apparatus for tracking hacking and method and apparatus for blocking hacking of content are provided. The watermarking method includes: obtaining device information from a reception device, with which content is shared, through a determined network channel; generating watermark data based on the obtained device information; and generating watermarked multimedia content by inserting the generated watermark data into content. The method of blocking hacking of content includes: if hacked content is found, detecting watermark data from the hacked content; detecting transmission and reception device information from the detected watermark data; and extracting a progress route of the content based on the detected transmission and reception device information and performing revocation on a hacked device.

主权项

1. A watermarking method for tracking hacking, the method comprising:
obtaining content sharing order information, wherein the content sharing order information indicates a sequential order in which content has been previously shared by a plurality of different devices; generating watermark data comprising the obtained content sharing order information; and generating watermarked multimedia content by inserting the generated watermark data into the content, wherein the generated watermarked multimedia content comprises device information of each of the plurality of different devices which previously shared the content.