Generic attacks on even-mansour structures

Abstract

We address attacks on secret key block ciphers especially on block ciphers which use minimal Even- Mansour structures. We suggest new key recovery attacks which have lower data complexity compared to other attacks with same time complexity and memory complexity. Precisely, we extend the attacks which was suggested by [IS17] to have lower data complexity. Also, we show that our attacks is better than other attacks with same time complexity and memory complexity.