Differential Cryptanalysis of New Qamal Encryption Algorithm

Cryptanalysis of GSM encryption algorithm A5/1

The A5/1 algorithm is one of the most famous stream cipher algorithms used for over-the-air communication privacy in GSM. The purpose of this paper is to analyze several weaknesses of A5/1, including an improvement to an attack and investigation of the A5/1 state transition. Biham and Dunkelman proposed an attack on A5/1 with a time and data complexity of 239.91and 221.1, ...

Differential Cryptanalysis of the ICE Encryption Algorithm

ICE is a 64-bit block cipher presented at the Fast Software Encryption Workshop in January 1997. It introduced the concept of a keyed permutation to improve the resistance against differential and linear cryptanalysis. In this paper we will show however that we can use low Hamming weighted differences to perform a practical, key dependent, differential attack on ICE. The main conclusion is that...

A New Fast Data Encryption Algorithm (FDE)

Diierential Cryptanalysis of the Ice Encryption Algorithm

ICE is a 64-bit block cipher presented at the Fast Software Encryption Workshop in January 1997. It introduced the concept of a keyed permutation to improve the resistance against diierential and linear cryptanalysis. In this paper we will show however that we can use low Hamming weighted diierences to perform a practical, key dependent , diierential attack on ICE. The main conclusion is that t...

Cryptanalysis of the Seal Encryption Algorithm

SEAL was rst introduced in 1] by Rogaway and Copper-smith as a fast software-oriented encryption algorithm. It is a pseu-dorandom function which stretches a short index into a much longer pseudorandom string under control of a secret key pre-processed into internal tables. In this paper we rst describe an attack of a simpliied version of SEAL, which provides large parts of the secret tables fro...