Constructing and Cryptanalysis of a 16 × 16 Binary Matrix as a Diffusion Layer. - Bonwook Koo; Hwan Seok Jang; Jung Hwan Song (WISA, 2003)

On Constructing of a 32 ×32 Binary Matrix as a Diffusion Layer for a 256-Bit Block Cipher. - Bonwook Koo; Hwan Seok Jang; Jung Hwan Song (ICISC, 2006)