A Practical-time Attack on Reduced-round MISTY1

Nobuyuki Sugio; Yasutaka Igarashi; Toshinobu Kaneko; Kenichi Higuchi

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Paper

A Practical-time Attack on Reduced-round MISTY1

Topics: Cryptographic Algorithms; Data and Software Security; Mobile Systems Security; Vulnerability Analysis and Countermeasures

In Proceedings of the 2nd International Conference on Information Systems Security and Privacy ICISSP - Volume 1, 235-242, 2016 , Rome, Italy

Authors: Nobuyuki Sugio ¹ ; Yasutaka Igarashi ² ; Toshinobu Kaneko ² and Kenichi Higuchi ²

Affiliations: ¹ NTT DOCOMO and INC., Japan ; ² Tokyo University of Science, Japan

Keyword(s): MISTY1, Symmetric Key Algorithm, Block Cipher, Higher Order Differential Attack.

Abstract: MISTY1 is one of the symmetric key algorithms which have been standardized by ISO and that its modified version is used in GSM and 3G mobile network. MISTY1 is a 64-bit block cipher supporting key length of 128-bit. In this paper, we focused on evaluating the security of MISTY1 against higher order differential attack. We show 6-round MISTY1 with 4 FL layers is attackable with $2^{43}$ blocks of chosen plaintexts and $2^{43.31}$ times of data encryption.

CC BY-NC-ND 4.0

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Paper citation in several formats:

Sugio, N.; Igarashi, Y.; Kaneko, T. and Higuchi, K. (2016). A Practical-time Attack on Reduced-round MISTY1. In Proceedings of the 2nd International Conference on Information Systems Security and Privacy - ICISSP; ISBN 978-989-758-167-0; ISSN 2184-4356, SciTePress, pages 235-242. DOI: 10.5220/0005652202350242

@conference{icissp16,
author={Nobuyuki Sugio. and Yasutaka Igarashi. and Toshinobu Kaneko. and Kenichi Higuchi.},
title={A Practical-time Attack on Reduced-round MISTY1},
booktitle={Proceedings of the 2nd International Conference on Information Systems Security and Privacy - ICISSP},
year={2016},
pages={235-242},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0005652202350242},
isbn={978-989-758-167-0},
issn={2184-4356},
}

TY - CONF

JO - Proceedings of the 2nd International Conference on Information Systems Security and Privacy - ICISSP
TI - A Practical-time Attack on Reduced-round MISTY1
SN - 978-989-758-167-0
IS - 2184-4356
AU - Sugio, N.
AU - Igarashi, Y.
AU - Kaneko, T.
AU - Higuchi, K.
PY - 2016
SP - 235
EP - 242
DO - 10.5220/0005652202350242
PB - SciTePress