A Novel Block Cipher Involving a Key bunch Matrix and a Key-based Permutation and Substitution
Dr V.U.K, K. Shirisha · International Journal of Advanced Computer Science and Applications · 2012
In this paper, we have developed a novel block cipher involving a key bunch matrix supported by a key-based permutation and a key-based substitution. In this analysis, the decryption key bunch matrix is obtained by using the given encryption key bunch matrix and the concept of multiplicative inverse. From the cryptanalysis carried out in this investigation, we have seen that the strength of the cipher is remarkably good and it cannot be broken by any conventional attack.