TRANSMISSION OF CRYPTIC TEXT USING ROTATIONAL VISUAL CRYPTOGRAPHY

P.R. Sushma Priya, P. Vijaya Bharati

Abstract: Today security is an important thing when we need to transmit data from one location to another safely. In this paper we are proposing an empirical model of secure data transmission technique with a hybrid approach of Cryptography, Stegnography and rotational analysis. In the initial phase, data is encrypted with DES algorithm with the help of Session key which is generated by the Diffie-Hellman Key exchange Algorithm. In the second phase Cipher Data is hidden into the cover image’s LSB to form the stego image, by considering security as the optimal security parameter. In the third phase, the Stego image is rotated with specific angle. At the receiver end, the image is de-rotated and the cipher information from the LSB is retrieved and the cipher information is decrypted with session key. This scheme achieves lossless recovery and is difficult to decrypt by the attackers.

Keywords: Cryptography, Stegnography, Visual Cryptography, DES, Diffie-Hellman Algorithm, Session Key

DOI: https://doi.org/10.15623/ijret.2013.0210052