In this paper, we present a detailed tutorial on linear cryptanalysis and differential
cryptanalysis, the two most significant attacks applicable to symmetric-key block ciphers. The …

A fundamental objective of cryptography is to enable two persons to communicate over an
insecure channel (a public channel such as the internet) in such a way that any other person …

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 …

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 …

Khazad is a 64-bit (legacy-level) block cipher that accepts a 128-bit key. The cipher is a
uniform substitution-permutation network whose inverse only differs from the forward …

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 …

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

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 study the long standing problem of information extraction from multiple
linear approximations. We develop a formal statistical framework for block cipher attacks …

Substitution boxes (S-box) with strong and secure cryptographic properties are widely used
for providing the key property of nonlinearity in block ciphers. This is critical to be resistant to …