TY  - JOUR
AU  - Varanasi, Aruna 
AU  - Kumar, S. U. 
PY  - 2008
TI  - A Block Cipher using Feistal's Approach Involving Permutation and Mixing of the Plaintext and the Additive Inverse of Key Matrix
JF  - Journal of Computer Science
VL  - 4
IS  - 2
DO  - 10.3844/jcssp.2008.117.124
UR  - https://thescipub.com/abstract/jcssp.2008.117.124
AB  - In this research, we have developed a block cipher for a block of size 112 bits by using an iterative method involving a permutation of the plaintext and the subkeys generated in each iteration. Here we have represented the plaintext as a matrix of f size 14×8, comprising binary bits. In the process of encryption, we have used a key matrix (K), which also consists of binary bits and generated subkeys from K for each iteration. For decryption, we have used the Additive inverse (K'i)−1 of the subkeys. In this, we have discussed the cryptanalysis and have shown that the cipher cannot be broken by any cryptanalytic attack.