On Permutation Layer of Type 1, Source-Heavy, and Target-Heavy Generalized Feistel Structures. - Shingo Yanagihara; Tetsu Iwata (CANS, 2011)

Cryptanalysis of 256-Bit Key HyRAL via Equivalent Keys. - Yuki Asano; Shingo Yanagihara; Tetsu Iwata (ACNS, 2012)

Improving the Permutation Layer of Type 1, Type 3, Source-Heavy, and Target-Heavy Generalized Feistel Structures. - Shingo Yanagihara; Tetsu Iwata (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2013)

Cryptanalysis of 249-, 250-, ..., 256-Bit Key HyRAL via Equivalent Keys. - Yuki Asano; Shingo Yanagihara; Tetsu Iwata (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2014)

Type 1.x Generalized Feistel Structures. - Shingo Yanagihara; Tetsu Iwata (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2014)