| 2008 |
| 4 | EE | Toru Akishita,
Masanobu Katagi,
Yoshikazu Miyato,
Asami Mizuno,
Kyoji Shibutani:
A Practical DPA Countermeasure with BDD Architecture.
CARDIS 2008: 206-217 |
| 2007 |
| 3 | EE | Taizo Shirai,
Kyoji Shibutani,
Toru Akishita,
Shiho Moriai,
Tetsu Iwata:
The 128-Bit Blockcipher CLEFIA (Extended Abstract).
FSE 2007: 181-195 |
| 2006 |
| 2 | EE | Taizo Shirai,
Kyoji Shibutani:
On Feistel Structures Using a Diffusion Switching Mechanism.
FSE 2006: 41-56 |
| 2004 |
| 1 | EE | Taizo Shirai,
Kyoji Shibutani:
Improving Immunity of Feistel Ciphers against Differential Cryptanalysis by Using Multiple MDS Matrices.
FSE 2004: 260-278 |