Polynomial-Time Codes Against Averaging Attack for Multimedia Fingerprinting

With rapid advances of information technologies, a large amount of digital contents, especially multimedia, can be processed by electronic devices such as computers and smartphones. Protecting the copyrights of digital contents is of paramount importance, and digital fingerprinting has attracted a lot of attention for this purpose. In digital fingerprinting, a user’s ID called a fingerprint is embedded into an original content with a watermarking technique, and then the fingerprinted contents are distributed to users.