Impossible-Differential and Boomerang Cryptanalysis of Round-Reduced Kiasu-BC

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• 关键词：Symmetric ; key cryptography ; Cryptanalysis ; Tweakable block cipher
• 刊名：Lecture Notes in Computer Science
• 出版年：2017
• 出版时间：2017
• 年：2017
• 卷：10159
• 期：1
• 页码：207-222
• 丛书名：Topics in Cryptology ?CT-RSA 2017
• ISBN：978-3-319-52153-4
• 卷排序：10159

文摘

Kiasu-BC is a tweakable block cipher proposed by Jean et al. at ASIACRYPT 2014 alongside their TWEAKEY framework. The cipher is almost identical to the AES-128 except for the tweak, which renders it an attractive primitive for various modes of operation and applications requiring tweakable block ciphers. Therefore, studying how the additional tweak input affects security compared to that of the AES is highly valuable to gain trust in future instantiations.