An Affine-Hill Cipher Application with the p-Generalized Fibonacci Q matrices and Steganography

Abstract

Affine-Hill Cipher is a symmetric key cryptographic algorithm. There are many studies in the literature to overcome the disadvantages of the symmetric key which is called the secret key and used both for encryption and decryption.  In this work, we proposed a secret key generated by using Fibonacci Q matrices and Trellis-based steganographic method. Our work includes iterative keys, one based on the generalized Fibonacci Q matrix and the other based on Trellis steganography method. What makes this work special is that knowing the secret key is not enough to decrypt it.