Key Modulation Technique for Secure Data Transfer Using Image Encryption

This work proposes a reversible image data hiding (RIDH) scheme over the encrypted domain. The confidential or important information, which sent in non-encrypted form, there might be a chance of misuse cases. To avoid this, secret data has to be encrypted while sending over network and hiding secret data into carrier so that the existence of encrypted data has to be invisible in order to convey secret message confidentially. The data embedding is achieved through a public key modulation mechanism. At the decoder side, a powerful two-class SVM classifier is designed to distinguish encrypted and non-encrypted image blocks, allowing us to jointly decode the embedded message and the original image signal. Compared with the state-of-the-art, the proposed approach provides higher embedding capacity and is able to perfectly reconstruct the original image as well as the embedded message.