Abstract:
A novel coverless steganography method based on cover selection was proposed. The sender was arranged firstly to establish a connection between the secret information and the cover image based on the iterative quantization hashing, and then to select the appropriate cover from the image set to transmit the secret information according to the connection. According to the pre-agreed rules, the receiver was arranged to extract the secret information from the image based on the image hashing technique. Experiments show that this method is superior to the traditional information-embedded steganography method in terms of security, and is slightly better than other coverless steganography methods in terms of robustness and steganographic capacity.