Kyoji Shibutani

According to our database, Kyoji Shibutani authored at least 22 papers between 2004 and 2022.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of three.

2022

On the (im)possibility of improving the round diffusion of generalized Feistel structures.

Kyoji Shibutani, Tetsu Iwata

Inf. Process. Lett., 2022

2020

Key-Recovery Security of Single-Key Even-Mansour Ciphers.

Takanori Isobe, Kyoji Shibutani

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2020

2019

Meet-in-the-Middle Key Recovery Attacks on a Single-Key Two-Round Even-Mansour Cipher.

Takanori Isobe, Kyoji Shibutani

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2019

2017

New Key Recovery Attacks on Minimal Two-Round Even-Mansour Ciphers.

Takanori Isobe, Kyoji Shibutani

IACR Cryptol. ePrint Arch., 2017

2015

Improved All-Subkeys Recovery Attacks on FOX, KATAN and SHACAL-2 Block Ciphers.

Takanori Isobe, Kyoji Shibutani

IACR Cryptol. ePrint Arch., 2015

Generic Key Recovery Attack on Feistel Scheme.

Takanori Isobe, Kyoji Shibutani

IACR Cryptol. ePrint Arch., 2015

Midori: A Block Cipher for Low Energy (Extended Version).

Subhadeep Banik, Andrey Bogdanov, Takanori Isobe, Kyoji Shibutani, Harunaga Hiwatari, Toru Akishita, Francesco Regazzoni

IACR Cryptol. ePrint Arch., 2015

Midori: A Block Cipher for Low Energy.

Subhadeep Banik, Andrey Bogdanov, Takanori Isobe, Kyoji Shibutani, Harunaga Hiwatari, Toru Akishita, Francesco Regazzoni

Proceedings of the Advances in Cryptology - ASIACRYPT 2015 - 21st International Conference on the Theory and Application of Cryptology and Information Security, Auckland, New Zealand, November 29, 2015

2014

Towards the optimality of Feistel ciphers with substitution-permutation functions.

Kyoji Shibutani, Andrey Bogdanov

Des. Codes Cryptogr., 2014

2013

Generalized Feistel networks revisited.

Andrey Bogdanov, Kyoji Shibutani

Des. Codes Cryptogr., 2013

2012

All Subkeys Recovery Attack on Block Ciphers: Extending Meet-in-the-Middle Approach.

Takanori Isobe, Kyoji Shibutani

Proceedings of the Selected Areas in Cryptography, 19th International Conference, 2012

Converting Meet-In-The-Middle Preimage Attack into Pseudo Collision Attack: Application to SHA-2.

Ji Li, Takanori Isobe, Kyoji Shibutani

Proceedings of the Fast Software Encryption - 19th International Workshop, 2012

Security Analysis of the Lightweight Block Ciphers XTEA, LED and Piccolo.

Takanori Isobe, Kyoji Shibutani

Proceedings of the Information Security and Privacy - 17th Australasian Conference, 2012

2011

Analysis of 3-line generalized Feistel networks with double SD-functions.

Andrey Bogdanov, Kyoji Shibutani

Inf. Process. Lett., 2011

Piccolo: An Ultra-Lightweight Blockcipher.

Kyoji Shibutani, Takanori Isobe, Harunaga Hiwatari, Atsushi Mitsuda, Toru Akishita, Taizo Shirai

Proceedings of the Cryptographic Hardware and Embedded Systems - CHES 2011 - 13th International Workshop, Nara, Japan, September 28, 2011

Double SP-Functions: Enhanced Generalized Feistel Networks - Extended Abstract.

Andrey Bogdanov, Kyoji Shibutani

Proceedings of the Information Security and Privacy - 16th Australasian Conference, 2011

2010

On the Diffusion of Generalized Feistel Structures Regarding Differential and Linear Cryptanalysis.

Kyoji Shibutani

Proceedings of the Selected Areas in Cryptography - 17th International Workshop, 2010

2009

Preimage Attacks on Reduced Tiger and SHA-2.

Takanori Isobe, Kyoji Shibutani

Proceedings of the Fast Software Encryption, 16th International Workshop, 2009

2008

A Practical DPA Countermeasure with BDD Architecture.

Toru Akishita, Masanobu Katagi, Yoshikazu Miyato, Asami Mizuno, Kyoji Shibutani

Proceedings of the Smart Card Research and Advanced Applications, 2008

2007

The 128-Bit Blockcipher CLEFIA (Extended Abstract).

Taizo Shirai, Kyoji Shibutani, Toru Akishita, Shiho Moriai, Tetsu Iwata

Proceedings of the Fast Software Encryption, 14th International Workshop, 2007

2006

On Feistel Structures Using a Diffusion Switching Mechanism.

Taizo Shirai, Kyoji Shibutani

Proceedings of the Fast Software Encryption, 13th International Workshop, 2006

2004

Improving Immunity of Feistel Ciphers against Differential Cryptanalysis by Using Multiple MDS Matrices.

Taizo Shirai, Kyoji Shibutani

Proceedings of the Fast Software Encryption, 11th International Workshop, 2004