Cryptography

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An Algebraic Approach to the Design of Block Ciphers 11/8/2017

By Óscar Pereira, HASLab, INESC TEC & Minho University.

Abstract. We explore the possibility of modelling a working block cipher, and analysing its security, exclusively through an algebraic framework of polynomial rings and finite fields: one aims to get the simplest formal models of ciphers for which it is possible to get demonstrative evidence of its security but still with reasonably efficient implementations.