Stochastic Cryptanalysis of Crypton

Abstract. Crypton is a 12-round blockcipher proposed as an AES candidate by C.H. Lim in 1998. In this paper, we show how to exploit some statistical deficiencies of the Crypton round function to mount stochastic attacks on round-reduced versions of Crypton. Though more efficient than the best differential and linear attacks, our attacks do not endanger the practical security offered by Crypton.

• Type: Conference
• Year: 2000
• Where: FSE
• Authors: Marine Minier, Henri Gilbert
• Keywords: AES Candidate, Cryptology, Crypton, FSE 2000, Stochastic Attacks