In this paper, we have developed a block cipher by applying an iterative method. In the process of encryption, we have used a key matrix (K) in which all the elements are binary bits. In the processâ€¦ (More)

In this paper, we have developed a block cipher by modifying the Feistel cipher. Here we have taken the plaintext in the form of a pair of matrices and we have introduced a set of operations calledâ€¦ (More)

In this paper we have proposed a method for an RGB image encryption supported by lifting scheme based lossless compression. Firstly we have compressed the input color image using a 2-D integerâ€¦ (More)

Presents a novel and efficient genetic approach for finding maximal cliques in a graph. A binary alphabet has been chosen to represent the presence or absence of nodes in a subgraph. The approach isâ€¦ (More)

We have developed a block cipher by using modular arithmetic inverse and linear congruences. The cipher contains a key matrix called the outer key. It also includes another key, which contains a setâ€¦ (More)

In this investigation, we have developed a block cipher which includes the basic ideas of the modified Feistel cipher and the advanced Hill cipher. In the advanced Hill cipher, as the modularâ€¦ (More)

In this investigation, we have developed a block cipher by blending a modified Feistel cipher and the advanced Hill cipher. In this analysis, we have made use of a pair of involutory matrices, say Aâ€¦ (More)

In this paper, we have developed a block cipher which includes a pair of key matrices. The first key matrix E is a key bunch matrix which is containing several odd integers as keys lying in [1-255],â€¦ (More)

In this paper, we have developed a block cipher by using the modular arithmetic inverse of a key matrix. The key matrix is generated by taking the key in the form of twenty-eight numbers, whereinâ€¦ (More)