Zero-steganography using DCT and spatial domain

As the primary concern in conventional steganography techniques is to make the algorithm immune to steganalysis, their primary focus is on imperceptibility. This paper discusses Zero-steganography, an imperceptible and un-detectable data hiding technique that does not require any steganalysis. The proposed algorithm hides the data based on a relationship between characteristic matrix of the cover image, chaotic sequence and payload; however, no change is made to the cover image. The proposed algorithm is analyzed for robustness against three attacks - low-pass filtering, noise and JPEG compression. Our results show that the proposed algorithm is robust against these attacks with Bit Error Rate (BER) below 20% even for the highest attack intensities.