This paper is devoted to the analysis of the impact of chaos-based techniques on block
encryption ciphers. We present several chaos based ciphers. Using the well-known …

Twofish is a 128-bit block cipher that accepts a variable-length key up to 256 bits. The cipher
is a 16-round Feistel network with a bijective F function made up of four key-dependent 8-by …

Bent Functions: Results and Applications to Cryptography offers a unique survey of the
objects of discrete mathematics known as Boolean bent functions. As these maximal …

Since the introduction of the Data Encryption Standard (DES) in the mid-1970s, block
ciphers have played an ever-increasing role in cryptology. Because of the growing number …

Block ciphers encrypt blocks of plaintext, messages, into blocks of ciphertext under the
action of a secret key, and the process of encryption is reversed by decryption which uses …

Despite their widespread usage in block cipher security, linear and differential cryptanalysis
still lack a robust treatment of their success probability, and the success chances of these …

Most present symmetric encryption algorithms result from a tradeoff between implementation
cost and resulting performances. In addition, they generally aim to be implemented …

In this paper, we propose a new lightweight 64-bit block cipher, which we call MIBS, suitable
for resource-constrained devices, such as low-cost RFID tags. We also study its hardware …

Several generalizations of linear cryptanalysis have been proposed in the past, as well as
very similar attacks in a statistical point of view. In this paper, we define a rigorous general …

In this paper, we investigate the Mixed-integer Linear Programming (MILP) modelling of the
differential and linear behavior of a wide range of block ciphers. We point out that the …