A new meet-in-the-middle attack on the IDEA block cipher

被引:0
|
作者
Demirci, H [1 ]
Selçuk, AA
Türe, E
机构
[1] Tubitak UEKAE, TR-41470 Gebze, Kocaeli, Turkey
[2] Bilkent Univ, Dept Comp Engn, TR-06800 Ankara, Turkey
[3] Marmara Univ, Fac Engn, Istanbul 81040, Turkey
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中图分类号
TP301 [理论、方法];
学科分类号
081202 ;
摘要
In this paper we introduce a novel meet-in-the-middle attack on the IDEA block cipher. The attack consists of a precomputation and an elimination phase. The attack reduces the number of required plaintexts significantly for 4 and 4.5 rounds, and, to the best of our knowledge, it is the first attack on the 5-round IDEA.
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页码:117 / 129
页数:13
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