Kyoji Shibutani

Publication Activity (10 Years)

Years Active: 2004-2022
Publications (10 Years): 5

Top Topics

Top Venues

IACR Cryptol. ePrint Arch.

Des. Codes Cryptogr.

IEICE Trans. Fundam. Electron. Commun. Comput. Sci.

Publications

Kyoji Shibutani, Tetsu Iwata
On the (im)possibility of improving the round diffusion of generalized Feistel structures. Inf. Process. Lett. 174 (2022)
Takanori Isobe, Kyoji Shibutani
Key-Recovery Security of Single-Key Even-Mansour Ciphers. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (7) (2020)
Takanori Isobe, Kyoji Shibutani
Meet-in-the-Middle Key Recovery Attacks on a Single-Key Two-Round Even-Mansour Cipher. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (1) (2019)
Takanori Isobe, Kyoji Shibutani
New Key Recovery Attacks on Minimal Two-Round Even-Mansour Ciphers. ASIACRYPT (1) (2017)
Takanori Isobe, Kyoji Shibutani
New Key Recovery Attacks on Minimal Two-Round Even-Mansour Ciphers. IACR Cryptol. ePrint Arch. 2017 (2017)
Subhadeep Banik, Andrey Bogdanov, Takanori Isobe, Kyoji Shibutani, Harunaga Hiwatari, Toru Akishita, Francesco Regazzoni
Midori: A Block Cipher for Low Energy. ASIACRYPT (2) (2015)
Subhadeep Banik, Andrey Bogdanov, Takanori Isobe, Kyoji Shibutani, Harunaga Hiwatari, Toru Akishita, Francesco Regazzoni
Midori: A Block Cipher for Low Energy (Extended Version). IACR Cryptol. ePrint Arch. 2015 (2015)
Takanori Isobe, Kyoji Shibutani
Generic Key Recovery Attack on Feistel Scheme. IACR Cryptol. ePrint Arch. 2015 (2015)
Takanori Isobe, Kyoji Shibutani
Improved All-Subkeys Recovery Attacks on FOX, KATAN and SHACAL-2 Block Ciphers. IACR Cryptol. ePrint Arch. 2015 (2015)
Takanori Isobe, Kyoji Shibutani
Improved All-Subkeys Recovery Attacks on FOX, KATAN and SHACAL-2 Block Ciphers. FSE (2014)
Kyoji Shibutani, Andrey Bogdanov
Towards the optimality of Feistel ciphers with substitution-permutation functions. Des. Codes Cryptogr. 73 (2) (2014)
Takanori Isobe, Kyoji Shibutani
Generic Key Recovery Attack on Feistel Scheme. ASIACRYPT (1) (2013)
Andrey Bogdanov, Kyoji Shibutani
Generalized Feistel networks revisited. Des. Codes Cryptogr. 66 (1-3) (2013)
Ji Li, Takanori Isobe, Kyoji Shibutani
Converting Meet-In-The-Middle Preimage Attack into Pseudo Collision Attack: Application to SHA-2. FSE (2012)
Takanori Isobe, Kyoji Shibutani
Security Analysis of the Lightweight Block Ciphers XTEA, LED and Piccolo. ACISP (2012)
Takanori Isobe, Kyoji Shibutani
All Subkeys Recovery Attack on Block Ciphers: Extending Meet-in-the-Middle Approach. Selected Areas in Cryptography (2012)
Andrey Bogdanov, Kyoji Shibutani
Double SP-Functions: Enhanced Generalized Feistel Networks - Extended Abstract. ACISP (2011)
Kyoji Shibutani, Takanori Isobe, Harunaga Hiwatari, Atsushi Mitsuda, Toru Akishita, Taizo Shirai
Piccolo: An Ultra-Lightweight Blockcipher. CHES (2011)
Andrey Bogdanov, Kyoji Shibutani
Analysis of 3-line generalized Feistel networks with double SD-functions. Inf. Process. Lett. 111 (13) (2011)
Kyoji Shibutani
On the Diffusion of Generalized Feistel Structures Regarding Differential and Linear Cryptanalysis. Selected Areas in Cryptography (2010)
Takanori Isobe, Kyoji Shibutani
Preimage Attacks on Reduced Tiger and SHA-2. FSE (2009)
Toru Akishita, Masanobu Katagi, Yoshikazu Miyato, Asami Mizuno, Kyoji Shibutani
A Practical DPA Countermeasure with BDD Architecture. CARDIS (2008)
Taizo Shirai, Kyoji Shibutani, Toru Akishita, Shiho Moriai, Tetsu Iwata
The 128-Bit Blockcipher CLEFIA (Extended Abstract). FSE (2007)
Taizo Shirai, Kyoji Shibutani
On Feistel Structures Using a Diffusion Switching Mechanism. FSE (2006)
Taizo Shirai, Kyoji Shibutani
Improving Immunity of Feistel Ciphers against Differential Cryptanalysis by Using Multiple MDS Matrices. FSE (2004)