Non-standard architectures for symmetric cryptographic algorithms. KU Leuven
Several non-standard approaches to the design of block ciphers are studied with respoect to differential and linear cryptanalysis. The new approach of improving the diffusion of unbalanced Feistel networks with contracting functions and incomplete Feistel networks by using maximum distance separable codes is analyzed. As such constructions have smaller diffusion layers, they can turn out more efficient in many settings than the standard block ...