Ralph Wernsdorf

Group theoretic properties of Rijndael-like ciphers

Rüdiger Sparr, Ralph Wernsdorf, Ralph Wernsdorf, 2008, Discret. Appl. Math..

Markov Ciphers and Alternating Groups

Ralph Wernsdorf, G. Hornauer, W. Stephan, 1994, EUROCRYPT.

The round functions of KASUMI generate the alternating group

Rüdiger Sparr, Ralph Wernsdorf, Ralph Wernsdorf, 2015, J. Math. Cryptol..

The Round Functions of RIJNDAEL Generate the Alternating Group

Ralph Wernsdorf, Ralph Wernsdorf, 2002, FSE.

Complementation-Like and Cyclic Properties of AES Round Functions

Yvo Desmedt, Tri Van Le, Rüdiger Sparr, 2004, AES Conference.

The Round Functions of SERPENT Generate the Alternating Group

Ralph Wernsdorf, 2000 .

The One-Round Functions of the DES Generate the Alternating Group

Ralph Wernsdorf, Ralph Wernsdorf, 1992, EUROCRYPT.