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arXiv 0910.2153cs.CR
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用大数据块改进Rijndael积分密码分析

Improving Integral Cryptanalysis against Rijndael with Large Blocks

Marine Minier, Benjamin Pousse

摘要:

本报告提出了新的四轮积分性质对Rijndael密码块大小大于128位。使用高阶多集分解器和这些属性的其他众所周知的扩展,推导出的攻击达到7和8轮Rijndael变体,具有160到256位的块。例如,对Rijndael-224的7轮攻击的时间复杂度等于$2^{80}$。

英文摘要:

This report presents new four-round integral properties against the Rijndael cipher with block sizes larger than 128 bits. Using higher-order multiset distinguishers and other well-known extensions of those properties, the deduced attacks reach up to 7 and 8 rounds of Rijndael variants with 160 up to 256-bit blocks. For example, a 7-rounds attack against Rijndael-224 has a time complexity equal to $2^{80}$.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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