The 7-Round Subspace Trail-Based Impossible Differential Distinguisher of Midori-64

This paper analyzes the subspace trail of Midori-64 and uses the propagation law and mutual relationship of the subspaces of Midori-64 to provide a 6-round Midori-64 subspace trail-based impossible differential key recovery attack. The data complexity of the attack is 254.6 chosen plaintexts, and th...

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Autores principales:	Wenhao Liu, Yang Yang
Formato:	article
Lenguaje:	EN
Publicado:	Hindawi-Wiley 2021
Materias:	Technology (General) T1-995 Science (General) Q1-390
Acceso en línea:	https://doaj.org/article/3b33475c759e4137ac2b7c3edfceef95
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spelling	oai:doaj.org-article:3b33475c759e4137ac2b7c3edfceef952021-11-22T01:09:40ZThe 7-Round Subspace Trail-Based Impossible Differential Distinguisher of Midori-641939-012210.1155/2021/6269604https://doaj.org/article/3b33475c759e4137ac2b7c3edfceef952021-01-01T00:00:00Zhttp://dx.doi.org/10.1155/2021/6269604https://doaj.org/toc/1939-0122This paper analyzes the subspace trail of Midori-64 and uses the propagation law and mutual relationship of the subspaces of Midori-64 to provide a 6-round Midori-64 subspace trail-based impossible differential key recovery attack. The data complexity of the attack is 254.6 chosen plaintexts, and the computational complexity is 258.2 lookup operations. Its overall complexity is less than that of the known 6-round truncated impossible differential distinguisher. This distinguisher is also applicable to Midori-128 with a secret S-box. Additionally, utilizing the properties of subspaces, we prove that a subspace trail-based impossible differential distinguisher of Midori-64 contains at most 7 rounds. This is 1 more than the upper bound of Midori-64’s truncated impossible differential distinguisher which is 6. According to the Hamming weights of the starting and ending subspaces, we classify all 7-round Midori-64 subspace trail-based impossible differential distinguishers into two types and they need 259.6 and 251.4 chosen plaintexts, respectively.Wenhao LiuYang YangHindawi-WileyarticleTechnology (General)T1-995Science (General)Q1-390ENSecurity and Communication Networks, Vol 2021 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Technology (General) T1-995 Science (General) Q1-390
spellingShingle	Technology (General) T1-995 Science (General) Q1-390 Wenhao Liu Yang Yang The 7-Round Subspace Trail-Based Impossible Differential Distinguisher of Midori-64
description	This paper analyzes the subspace trail of Midori-64 and uses the propagation law and mutual relationship of the subspaces of Midori-64 to provide a 6-round Midori-64 subspace trail-based impossible differential key recovery attack. The data complexity of the attack is 254.6 chosen plaintexts, and the computational complexity is 258.2 lookup operations. Its overall complexity is less than that of the known 6-round truncated impossible differential distinguisher. This distinguisher is also applicable to Midori-128 with a secret S-box. Additionally, utilizing the properties of subspaces, we prove that a subspace trail-based impossible differential distinguisher of Midori-64 contains at most 7 rounds. This is 1 more than the upper bound of Midori-64’s truncated impossible differential distinguisher which is 6. According to the Hamming weights of the starting and ending subspaces, we classify all 7-round Midori-64 subspace trail-based impossible differential distinguishers into two types and they need 259.6 and 251.4 chosen plaintexts, respectively.
format	article
author	Wenhao Liu Yang Yang
author_facet	Wenhao Liu Yang Yang
author_sort	Wenhao Liu
title	The 7-Round Subspace Trail-Based Impossible Differential Distinguisher of Midori-64
title_short	The 7-Round Subspace Trail-Based Impossible Differential Distinguisher of Midori-64
title_full	The 7-Round Subspace Trail-Based Impossible Differential Distinguisher of Midori-64
title_fullStr	The 7-Round Subspace Trail-Based Impossible Differential Distinguisher of Midori-64
title_full_unstemmed	The 7-Round Subspace Trail-Based Impossible Differential Distinguisher of Midori-64
title_sort	7-round subspace trail-based impossible differential distinguisher of midori-64
publisher	Hindawi-Wiley
publishDate	2021
url	https://doaj.org/article/3b33475c759e4137ac2b7c3edfceef95
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The 7-Round Subspace Trail-Based Impossible Differential Distinguisher of Midori-64

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