A Brief Review on Reversible Data Hiding in Encrypted Image
Krutika Dhande, Rutuja Channe · 2019
To provide the secure communication, data encryption is the best way. In this paper, very easy, quick and authenticate encryption scheme is proposed . The Data hiding in encrypted image plays a vital role for authentication purpose. In A-S algorithm using symmetric stream cipher data hiding is performed. Encryption key and data hiding key can be uses by the user. Image encryption is performed with the help of A-S algorithm. After the encryption is performed, in encrypted image, data hiding key helps to hide the data. Containing auxiliary data with an encrypted image, auxiliary data can extract if receiver has data hiding key, the received data can decrypt to get the image identical to the original image if receiver has encryption key, auxillary data can extract and recovered the original data without any distortion if receiver has both keys. With this techniques the retrived image achives a good PSNR value.