The Design of Cryptographic S-Boxes Using CSPs. - Venkatesh Ramamoorthy; Marius-Calin Silaghi; Toshihiro Matsui; Katsutoshi Hirayama; Makoto Yokoo (CP, 2011)

Soft Nonlinearity Constraints and their Lower-Arity Decomposition. - Venkatesh Ramamoorthy; Marius Silaghi 001; Toshihiro Matsui; Katsutoshi Hirayama; Makoto Yokoo (ISAIM, 2012)