Algebraic Cryptanalysis of Curry and Flurry Using Correlated Messages

In [10], Buchmann, Pyshkin and Weinmann have described two families of Feistel and SPN block ciphers called Flurry and Curry respectively. These two families of ciphers are fully parametrizable and have a sound design strategy against basic statistical attacks; i.e. linear and differential attacks. The encryption process can be easily described by a set of algebraic equations. These ciphers are then targets of choices for algebraic attacks. In particular, the key recovery problem has been reduced to changing the order of a Gr

• Type: Journal
• Year: 2009
• Where: CISC
• Authors: Jean-Charles Faugère, Ludovic Perret
• Keywords: Algebraic Attacks, Basic Statistical Attacks, CISC 2009, Cryptology, SPN Block Ciphers