FOX : A New Family of Block Ciphers

In this paper, we describe the design of a new family of block ciphers based on a Lai-Massey scheme, named FOX. The main features of this design, besides a very high security level, are a large implementation flexibility on various platforms as well as high performances. In addition, we propose a new design of strong and efficient key-schedule algorithms. We provide evidence that FOX is immune to linear and differential cryptanalysis, and we discuss its security towards integral cryptanalysis, algebraic attacks, and other attacks. Key words: Block ciphers, Lai-Massey scheme

• Type: Conference
• Year: 2004
• Where: SACRYPT
• Authors: Pascal Junod, Serge Vaudenay
• Keywords: Block Ciphers, Lai-Massey Scheme, Large Implementation flexibility, SACRYPT 2004