Complete Separable Reversible Data Hiding for Encrypted Digital Images Using Code Division Multiplexing with Versatile Bit Depth Management

A reversible data hiding in the encrypted domain (RDH-ED) aims to hide within images, protecting its content, while allowing additional information be distributed. This paper presents a complete separable RDH-ED scheme, whose main contribution is receiver extract and restore image, either from cryptogram with hidden or directly decrypted version. With versatile bit-depth management, most significant bits of each pixel are AES-CTR cipher algorithm, will inserted inside least bit planes pixels, by means code division multiplexing technique. Considering marked/encrypted encryption/data-hiding keys, could: (a) decrypt image obtain approximate version, (b) error-free data, (c) recover original image. an approximation version key, (d) plaintext domain, (e) state, accessing without any loss. Experimental results show performance developed evaluating capacity imperceptibility proposed scheme respect current state art.