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低轮PUFFIN算法的积分攻击 被引量：3

Integral cryptanalysis on reduced-round PUFFIN
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摘要 PUFFIN是一个分组长度为64bit的轻量级分组密码算法,其密钥长度为128bit。对PUFFIN抵抗积分攻击的能力进行研究,构造并证明PUFFIN算法存在5轮和6轮积分区分器。利用6轮积分区分器对8轮PUFFIN进行积分攻击,可恢复2轮共100bit轮密钥,攻击的数据复杂度为220个选择明文,时间复杂度约为233次8轮加密,存储复杂度为220,这是目前为止对PUFFIN最好的积分分析结果。 PUFFIN is a lightweight block cipher, in which the block length is 64 bit while the key size is 128 bit. The integral cryptanalysis resistance ability of PUFFIN was analyzed. The existence of 5 and 6 round integral distinguisher in PUFFIN was constructed and proved. An integral attack on 8 round PUFFIN was mounted by 6 round integral distinguisher to recover 2 round 100 bit round cipher. The data complexity of the attack is 220 chosen plaintexts, the time complexity is about 233 8 round eneryptions, and the space complexity is 220. This has been the best integral attack on PUFFIN up to now.
作者 赵光耀 成磊 李瑞林 李超 孙兵
机构地区 国防科技大学计算机学院 国防科技大学理学院 国防科技大学电子科学与工程学院
出处 《国防科技大学学报》 EI CAS CSCD 北大核心 2015年第6期129-134,共6页 Journal of National University of Defense Technology
基金 国家自然科学基金资助项目(61402515) 信息保障技术国家重点实验室开放基金资助项目(KJ-14-003)
关键词 PUFFIN 轻量级分组密码 积分攻击 PUFFIN lightweight block cipher integral attack
分类号 TN918 [电子电信—通信与信息系统]
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参考文献16

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共引文献18

同被引文献4

引证文献3

二级引证文献5

国防科技大学学报
2015年 第6期

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