A Generalized Playfair Chipher involving Intertwining, Interweaving and Iteration

In this paper, we have generalized the classical Playfair cipher by introducing the concepts of intertwining, interweaving and iteration. The substitution process is carried out by using intertwining. In this cipher, the size of the key is 448 bits and the plaintext block can be of any size. On account of the operations intertwining, interweaving and iteration, the binary bits in the plaintext undergo, markedly, confusion and difusión at the everystage of the iteration. This strengthens the Chiper significantly.