Miss in the Middle Attacks on IDEA and Khufu
Miss in the Middle Attacks on IDEA and Khufu
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DOI：
10.1007/3-540-48519-8_10
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发表时间：
1999-03
期刊：
影响因子：
--
通讯作者：
E. Biham;A. Biryukov;A. Shamir
中科院分区：
文献类型：
--
作者：
E. Biham;A. Biryukov;A. Shamir
在最近的一篇论文中，我们开发了一种基于不可能差分的新密码分析技术，并用它来攻击 Skipjack 加密算法，将其从 32 轮减少到 31 轮。在本文中，我们描述了该技术在分组密码 IDEA 和 Khufu 中的应用。在这两种情况下，新的攻击比当前已知的最佳攻击涵盖更多的回合。这证明了新密码分析技术的强大功能，表明它适用于更大类别的密码系统，并开发了新的技术工具以将其应用于新情况。
In a recent paper we developed a new cryptanalytic technique based onimpossible differentials, and used it to attack the Skipjack encryption algorithm reduced from 32 to 31 rounds. In this paper we describe the application of this technique to the block ciphers IDEA and Khufu. In both cases the new attacks cover more rounds than the best currently known attacks. This demonstrates the power of the new cryptanalytic technique, shows that it is applicable to a larger class of cryptosystems, and develops new technical tools for applying it in new situations.