Secure Reversible Data Hiding in Encrypted Image by Reversible Image Transformation (rit)

With the popularity of outsourcing facts to the cloud, it's far vital to shield the privacy of facts and enable the cloud server to effortlessly control the data at the same time. Under such needs, reversible statistics hiding in encrypted photos (RDH-EI) attracts increasingly more researchers’ attention. In this paper, we suggest a singular framework for RDH-EI primarily based on reversible photo transformation (RIT). Different from all previous encryption based totally frameworks, wherein the cipher-texts may additionally appeal to the notation of the curious cloud, RIT-primarily based framework allows the consumer to transform the content material of authentic image into the content of every other goal photo with the identical size. The converted picture, that seems like the goal photo, is used because the “encrypted image”, and is outsourced to the cloud. Therefore, the cloud server can easily embed statistics into the “encrypted picture” through any RDH strategies for plaintext snap shots. And thus a patron-unfastened scheme for RDH-EI may be realized, that is, the records embedding manner carried out with the aid of the cloud server is inappropriate with the procedures of both encryption and decryption. Two RDH methods, such as conventional RDH scheme and unified embedding and scrambling scheme, are adopted to embed watermark in the encrypted image, which could satisfy unique desires on photograph firstclass and big embedding capability respectively.