Kyoji Shibutani

25 papers A* 6A 1B 2C 1Misc 2Journal 10Unranked 3
YearRankTypeTitle / Venue / Authors
2022 J jnl
On the (im)possibility of improving the round diffusion of generalized Feistel structures.
Inf. Process. Lett.
Kyoji Shibutani, Tetsu Iwata
2020 J jnl
Key-Recovery Security of Single-Key Even-Mansour Ciphers.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Takanori Isobe, Kyoji Shibutani
2019 J jnl
Meet-in-the-Middle Key Recovery Attacks on a Single-Key Two-Round Even-Mansour Cipher.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Takanori Isobe, Kyoji Shibutani
2017 — conf
New Key Recovery Attacks on Minimal Two-Round Even-Mansour Ciphers.
ASIACRYPT (1)
Takanori Isobe, Kyoji Shibutani
2017 J jnl
New Key Recovery Attacks on Minimal Two-Round Even-Mansour Ciphers.
IACR Cryptol. ePrint Arch.
Takanori Isobe, Kyoji Shibutani
2015 J jnl
Generic Key Recovery Attack on Feistel Scheme.
IACR Cryptol. ePrint Arch.
Takanori Isobe, Kyoji Shibutani
2015 J jnl
Improved All-Subkeys Recovery Attacks on FOX, KATAN and SHACAL-2 Block Ciphers.
IACR Cryptol. ePrint Arch.
Takanori Isobe, Kyoji Shibutani
2015 J jnl
Midori: A Block Cipher for Low Energy (Extended Version).
IACR Cryptol. ePrint Arch.
Subhadeep Banik, Andrey Bogdanov, Takanori Isobe, Kyoji Shibutani, Harunaga Hiwatari, Toru Akishita, Francesco Regazzoni
2015 — conf
Midori: A Block Cipher for Low Energy.
ASIACRYPT (2)
Subhadeep Banik, Andrey Bogdanov, Takanori Isobe, Kyoji Shibutani, Harunaga Hiwatari, Toru Akishita, Francesco Regazzoni
2014 A* conf
Improved All-Subkeys Recovery Attacks on FOX, KATAN and SHACAL-2 Block Ciphers.
FSE
Takanori Isobe, Kyoji Shibutani
2014 J jnl
Towards the optimality of Feistel ciphers with substitution-permutation functions.
Des. Codes Cryptogr.
Kyoji Shibutani, Andrey Bogdanov
2013 J jnl
Generalized Feistel networks revisited.
Des. Codes Cryptogr.
Andrey Bogdanov, Kyoji Shibutani
2013 — conf
Generic Key Recovery Attack on Feistel Scheme.
ASIACRYPT (1)
Takanori Isobe, Kyoji Shibutani
2012 B conf
All Subkeys Recovery Attack on Block Ciphers: Extending Meet-in-the-Middle Approach.
Selected Areas in Cryptography
Takanori Isobe, Kyoji Shibutani
2012 A* conf
Converting Meet-In-The-Middle Preimage Attack into Pseudo Collision Attack: Application to SHA-2.
FSE
Ji Li, Takanori Isobe, Kyoji Shibutani
2012 Misc conf
Security Analysis of the Lightweight Block Ciphers XTEA, LED and Piccolo.
ACISP
Takanori Isobe, Kyoji Shibutani
2011 J jnl
Analysis of 3-line generalized Feistel networks with double SD-functions.
Inf. Process. Lett.
Andrey Bogdanov, Kyoji Shibutani
2011 Misc conf
Double SP-Functions: Enhanced Generalized Feistel Networks - Extended Abstract.
ACISP
Andrey Bogdanov, Kyoji Shibutani
2011 A conf
Piccolo: An Ultra-Lightweight Blockcipher.
CHES
Kyoji Shibutani, Takanori Isobe, Harunaga Hiwatari, Atsushi Mitsuda, Toru Akishita, Taizo Shirai
2010 B conf
On the Diffusion of Generalized Feistel Structures Regarding Differential and Linear Cryptanalysis.
Selected Areas in Cryptography
Kyoji Shibutani
2009 A* conf
Preimage Attacks on Reduced Tiger and SHA-2.
FSE
Takanori Isobe, Kyoji Shibutani
2008 C conf
A Practical DPA Countermeasure with BDD Architecture.
CARDIS
Toru Akishita, Masanobu Katagi, Yoshikazu Miyato, Asami Mizuno, Kyoji Shibutani
2007 A* conf
The 128-Bit Blockcipher CLEFIA (Extended Abstract).
FSE
Taizo Shirai, Kyoji Shibutani, Toru Akishita, Shiho Moriai, Tetsu Iwata
2006 A* conf
On Feistel Structures Using a Diffusion Switching Mechanism.
FSE
Taizo Shirai, Kyoji Shibutani
2004 A* conf
Improving Immunity of Feistel Ciphers against Differential Cryptanalysis by Using Multiple MDS Matrices.
FSE
Taizo Shirai, Kyoji Shibutani