Many modern block ciphers use maximum distance separable (MDS) matrices as the main
part of their diffusion layers. In this paper, we propose a new class of diffusion layers …

The contributions of this paper include the first linear hull and a revisit of the algebraic
cryptanalysis of reduced-round variants of the block cipher PRESENT, under known-plaintext and …

This paper describes and analyzes the security of a general-purpose cryptographic function
design, with application in RFID tags and sensor networks. Based on these analyzes, we …

In this paper, we present several weaknesses in the stream cipher RC4. First, we present a
technique to automatically reveal linear correlations in the PRGA of RC4. With this method, …

In this paper we construct several tools for manipulating pools of biases in the analysis of
RC4. Then, we show that optimized strategies can break WEP based on 4 000 packets by …

This paper presents the first results on AIDA/cube, algebraic and side-channel attacks on
variable number of rounds of all members of the KATAN family of block ciphers. Our cube …

Symmetric cryptographic primitives such as block and stream ciphers are the building
blocks in many cryptographic protocols. Having such blocks which provide provable security …

ElimLin is a simple algorithm for solving polynomial systems of multivariate equations over
small finite fields. It was initially proposed as a single tool by Courtois to attack DES. It can …

Many modern block ciphers use maximum distance separable (MDS) matrices as the main
part of their diffusion layers. In this paper, we propose a very efficient new class of diffusion …

Recently, two families of ultra-lightweight block ciphers were proposed, SIMON and SPECK,
which come in a variety of block and key sizes (Beaulieu et al., 2013). They are designed to …