DYNAMIC CRYPTOGRAPHIC AUTHENTICATION APPLIED REVERSIBLE DATA HIDING BY RESERVING ROOM BEFORE ENCRYPTION

Niranjana.K, Ramkumar.M, Kothaima.K

Abstract: In the emerging technologies, confidential information needs some authentication for access through internet. Cryptography plays an important role to transfer the data using different algorithm with privacy key to hide the original data through network. All data hiding method based on different schemes are used to image encryption and then data hiding in image using cryptographic keys otherwise using password. Reversible data hiding method provide security to transfer secret data by encrypted the carrier image and embedded the original data in image. In existing method, using RDH algorithm based on reserving area prior to encryption for security purpose. By the way of recovering the original data, there is possibility of hack the keys used for encryption and embedding process. In proposed method, provide authentication to recover the carrier image by allows only receiver to retrieve the original data across servers to prevent from hackers. It maintains confidential production that the original data can be extracted after data binding process with secret password authentication. To overcome the difficulties of existing process which may subject to increase the security, this project proposes a confidential method by reserving room after encryption with dynamically producing a password. This process can extract and embed the data without any error. In addition to that, the security of our data hiding is high when compare with other hiding approaches related to confidential.

Keywords: Dynamic cryptographic authentication, Reversible data hiding, Image encryption, Histogram shift, confidential production

DOI: https://doi.org/10.15623/ijret.2014.0319081