On the mixcolumns linear transformation used in AES cipher AES şifresinde kullanilan mixcolumns doǧrusal dönüşümü üzerine

Aslan F. Y., SAKALLI M. T., Aslan B.

2010 7th National Conference on Electrical, Electronics and Computer Engineering, ELECO 2010, Bursa, Turkey, 2 - 05 December 2010, pp.563-568, (Full Text) identifier

  • Publication Type: Conference Paper / Full Text
  • City: Bursa
  • Country: Turkey
  • Page Numbers: pp.563-568
  • Trakya University Affiliated: Yes

Abstract

AES block cipher includes a linear transformation called MixColumns which transforms 32-bit input to 32-bit output. This transformation has the property that makes linear and differential attacks harder. In this study, we obtain a model of MixColumns transformation in bits. In fact, there are two reasons for obtaining this model. The first one is to show branch number of this transformation which is important cryptographic criterion from the point of linear transformations. On the other hand, the second one is to make the software performance analysis of this transformation, which is one of two important components of a block cipher, by using obtained model.