Tone Code : A Novel Method for Covert Communications Based on Musical Components

Abstract

Data hiding schemes using complete complementary codes (CCC) have been developed for image and audio signals. It has been shown that a high payload and a low bit-error-rate can be achieved by such data hiding strategies because of the ideal auto- and cross-correlation properties of CCC. In this study, a new data hiding strategy based on CCC is proposed by utilizing characteristics of musical pieces. In the proposed method, secret information is embedded into the specific frequency coefficients constructing the chord progression of the musical piece. If the completely same frequency coefficients used in the musical piece are selected to embed the secret information, they can perfectly match t..