Purdue Research Foundation

Raymond B Wolfgang

Edward John Delp

Eugene Ted Lin

Jordan J Glogau

A method of data hiding includes providing a message (), providing an encrypting sequence (), and generating an encrypted message () based on the message and the encrypting sequence. A carrier signal () that conveys information unrelated to the encrypted message is provided, and the encrypted message is embedded () into the carrier signal by performing an exclusive-OR of the encrypted message with a first portion of the carrier signal.

Hiding of encrypted data

A method of determining if at least a portion of a suspect signal ( ) is derived from a watermarked original signal ( ) includes the steps of providing a watermark ( ) and creating the watermarked original signal ( ) by incorporating the watermark ( ) onto an original signal ( ). At least one first watermark indicator is generated ( ) based on the the watermarked original signal ( ) and the watermark ( ) and at least one second watermark indicator is generated ( ) based on the suspect signal ( ) and the watermark ( ). A determination is made ( ) whether at least a portion of the suspect signal ( ) is derived from the watermarked original signal ( ) is made based on the at least one first watermark indicator ( ) and the at least one second watermark indicator ( ).

Growing community of inventors

Exton, PA, United States of America

Raymond B Wolfgang