## Cryptology ePrint Archive: Report 2011/177

Dynamic MDS Matrices for Substantial Cryptographic Strength

Muhammad Yasir Malik and Jong-Seon No

Abstract: Ciphers get their strength from the mathematical functions of confusion and diffusion, also known as substitution and permutation. These were the basics of classical cryptography and they are still the basic part of modern ciphers. In block ciphers diffusion is achieved by the use of Maximum Distance Separable (MDS) matrices. In this paper we present some methods for constructing dynamic (and random) MDS matrices.

Category / Keywords: implementation / Maximum Distance Separable (MDS) matrix, dynamic, random, diffusion, optimal matrix

Publication Info: Short paper at WISA'10. Not included in proceedings.