Image Encryption By Using Magic Squares

This paper investigates image encryption by using magic squares. We propose a new magic square encryption method to which we refer as Good Lattice Point (GLP) method. Traditional magic square encryption method ([4]) focuses on disordering positions of image pixel points according to magic squares. GLP method works in the same way but gives different encryption periods and better encrypted effect than the traditional one. In addition, we also propose other new encryption methods which focus on changing values of image pixel points according to operations of magic squares such as addition and production operations. Furthermore, we develop a criteria which measures the effect of image encryption and consequently provides a way to compare different magic square encryption methods.