Title: Cryptanalysis of Rijndael-192/224 in Single Key Setting
Abstract: Rijndael was the finalist of Advanced Encryption Standard (AES) competition and Rijndael-128 with the 128-bit block size was selected as the standard. In this paper, we concentrate on the security of large-block Rijndael under impossible differential attack. First, the differential properties of S-box and MixColumn in Rijndael were analyzed to construct a 6-round impossible differential distinguisher of Rijndael-192. Based on the new distinguisher, the first impossible differential attack on 9-round Rijndael-192 was proposed. Then the flaws in the impossible differential attack on 10-round Rijndael-224 introduced by Minier in 2016 were presented. And a new impossible differential attack on 10-round Rijndael-224 was introduced in this paper. Finally, the optimal techniques such as: early abort technique, quick sort algorithm and time-memory tradeoff strategy could be used to improve the security of Rijndael-160 and Rijndael-256 under the impossible differential attack.
Publication Year: 2017
Publication Date: 2017-01-01
Language: en
Type: book-chapter
Indexed In: ['crossref']
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Cited By Count: 1
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