Serpent: A New Block Cipher Proposal

Serpent: A Flexible Block Cipher With Maximum Assurance

Multidimensional Linear Cryptanalysis of Reduced Round Serpent

Various authors have previously presented di erent approaches how to exploit multiple linear approximations to enhance linear cryptanalysis. In this paper we present a new truly multidimensional approach to generalise Matsui’s Algorithm 1. We derive the statistical framework for it and show how to calculate multidimensional probability distributions based on correlations of onedimensional linea...

A Differential-Linear Attack on 12-Round Serpent

Serpent is an SP Network block cipher submitted to the AES competition and chosen as one of its five finalists. The security of Serpent is widely acknowledged, especially as the best known attack so far is a differential-linear attack on only 11 rounds out of the 32 rounds of the cipher. In this paper we introduce a more accurate analysis of the differentiallinear attack on 11-round Serpent. Th...

Serpent and Smartcards

We proposed a new block cipher, Serpent, as a candidate for the Advanced Encryption Standard. This algorithm uses a new structure that simultaneously allows a more rapid avalanche, a more efficient bitslice implementation, and an easy analysis that enables us to demonstrate its security against all known types of attack. Although designed primarily for efficient implementation on Intel Pentium/...

On Algebraic Relations of Serpent S-Boxes

Serpent is a 128-bit block cipher designed by Ross Anderson, Eli Biham and Lars Knudsen as a candidate for the Advanced Encryption Standard (AES). It was a finalist in the AES competition. The winner, Rijndael, got 86 votes at the last AES conference while Serpent got 59 votes [1]. The designers of Serpent claim that Serpent is more secure than Rijndael.In this paper we have observed that the n...