对Zodiac算法的中间相遇攻击
doi: 10.3724/SP.J.1146.2011.01023
The Meet-in-the-middle Attacks on Zodiac
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摘要: Zodiac算法是由一批韩国专家设计的一个分组密码算法。该文首次研究了Zodiac算法抵抗中间相遇攻击的能力。找到了Zodiac算法新的9轮区分器和10轮区分器，基于这两个区分器分别对15轮和完整16轮Zodiac算法进行了中间相遇攻击。结果表明完整16轮Zodiac-128/192/256是不抗中间相遇攻击的。Abstract: Zodiac is a block cipher designed by a group of Korean experts. This paper studies the security of Zodiac against the meet-in-the-middle attack for the first time. Some new 9-round and 10-round distinguishers of Zodiac are found, and based on which some meet-in-the-middle attacks are made on 15-round and the full 16-round Zodiac. The results show that the full Zodiac-128/192/256 are not immune to the meet-in-the-middle attack.
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Key words:
- Block cipher /
- Zodiac /
- Distinguisher /
- Meet-in-the-middle attack
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