A New Digital Multimedia Steganography Scheme Based on Complex Number Base

In this paper, we propose a new digital multimedia steganography scheme based on complex number base. Based on this idea, all kinds of digital information can be represented by 0–1 sequences, so there may be some relationship between the two sequences. In order to find this relationship, we focus on the coding of complex number and study the mapping function between points on the complex plane. The general process of our method can be summarized as follows: mapping the secret and public binary sequence into points on the complex plane, constructing a spline curve that goes through all secret and public points, and then, hiding the point differences in another public spline curve image for future secret message recovery. The experiment result shows the proposed method has relative stability and can accurately recover the secret information.