Stochastic cryptanalysis of Crypton. (English) Zbl 0999.94545

Schneier, Bruce (ed.), Fast software encryption. 7th international workshop, FSE 2000, New York, NY, USA, April 10-12, 2000. Proceedings. Berlin: Springer. Lect. Notes Comput. Sci. 1978, 121-133 (2001).
Summary: Crypton is a 12-round block cipher 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.
For the entire collection see [Zbl 0958.00037].


94A60 Cryptography
68P25 Data encryption (aspects in computer science)
62P99 Applications of statistics