| LBlock算法的基于比特积分攻击 |
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| 引用本文： | 潘志舒,郭建胜. LBlock算法的基于比特积分攻击[J]. 信息工程大学学报, 2013, 14(1): 30-35 |
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| 作者姓名： | 潘志舒 郭建胜 |
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| 作者单位： | 信息工程大学密码工程学院 |
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| 摘 要： | 对分组密码算法LBlock在基于比特积分攻击下的安全性进行了分析，利用基于比特的积分攻击思想，构造了8轮积分区分器，并向前扩展到12轮，基于该区分器对17轮算法进行了积分攻击，给出了攻击算法，攻击的计算复杂度约为2^63.7。
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| 关 键 词： | 分组密码 密码分析 基于比特积分攻击 LBlock算法 |
Bit Pattern Based Integral Attack on Lblock |
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| PAN Zhi-shu,GUO Jian-sheng. Bit Pattern Based Integral Attack on Lblock[J]. , 2013, 14(1): 30-35 |
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| Authors: | PAN Zhi-shu GUO Jian-sheng |
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| Affiliation: | (Institute of Cryptographic Engineering,Information Engineering University,Zhengzhou 450004,China) |
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| Abstract: | The security of the block cipher LBlock against the bit-pattern based integral attack is an- alyzed. In terms of the idea of bit-pattern based integral attack, a 8-round distinguisher of LBlock is built, and extended ahead to12 rounds. Based on the distinguisher, this paper applies the bit-pat- tern based integral attack to 17 rounds of LBlock and presents the attack arithmetic. The computing complexity is about 263.7. |
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| Keywords: | block cipher cryptanalysis bit pattern based integral attack Lblock |
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