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Paper 2016/535
Impossible Differential Cryptanalysis of Midori
Chen Zhan and Wang Xiaoyun
Abstract
Midori is a light weight block cipher recently presented by Banik et al in ASIACRYPT 2015. There are two versions of Midori with state sizes of 64-bit and 128-bit respectively. The round function is based on Substitution-Permutation Network(SPN). In this paper, we give impossible differential cryptanalysis of Midori64. We studied the non-linear layer of the cipher and give two useful properties. We also find the first 6- round impossible differential paths with two non-zero and equal input cells and one non-zero output cell, and then mount 10-round attack. This is the first impossible differential attack on Midori.
Metadata
- Available format(s)
- Category
- Public-key cryptography
- Publication info
- Published elsewhere. Minor revision. ICMAE2016
- Keywords
- light weight block ciphersimpossible differential cryptanalysis.
- Contact author(s)
- z-chen14 @ mails tsinghua edu cn
- History
- 2018-04-18: withdrawn
- 2016-05-31: received
- See all versions
- Short URL
- https://ia.cr/2016/535
- License
-
CC BY