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1. 信息工程大学密码工程学院,河南 郑州 450004
2. 航天工程大学,北京 101416
[ "王念平(1973-),男,河南洛阳人,博士,信息工程大学教授、博士生导师,主要研究方向为密码学、信息安全等" ]
[ "殷勍(1990-),男,河南新乡人,航天工程大学助理工程师,主要研究方向为信息安全" ]
网络出版日期:2022-02,
纸质出版日期:2022-02-25
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王念平, 殷勍. 类Piccolo结构的差分安全性评估[J]. 通信学报, 2022,43(2):55-64.
Nianping WANG, Qing YIN. Differential security evaluation of Piccolo-like structure[J]. Journal on communications, 2022, 43(2): 55-64.
王念平, 殷勍. 类Piccolo结构的差分安全性评估[J]. 通信学报, 2022,43(2):55-64. DOI: 10.11959/j.issn.1000-436x.2022037.
Nianping WANG, Qing YIN. Differential security evaluation of Piccolo-like structure[J]. Journal on communications, 2022, 43(2): 55-64. DOI: 10.11959/j.issn.1000-436x.2022037.
为丰富分组密码的设计,提出类Piccolo结构及其设计原理,并深入研究了类Piccolo结构抵抗差分密码分析的能力。通过研究差分特征的输入输出传递特性,得到任意轮类Piccolo结构的活动轮函数个数的一个下界。分析结果表明,在轮函数都是双射的条件下,当迭代轮数l≥6时,l轮类Piccolo结构的活动轮函数个数≥l;当迭代轮数l为1
2
3
4
5时,l轮类Piccolo结构的活动轮函数个数≥l-1。
In order to diversify the design of block cipher
Piccolo-like structure was proposed with principles of design.Security evaluation for Piccolo-like structure against differential cryptanalysis was deeply studied.By studying the input-output propagation characteristics of differential characteristics
the lower bound on the number of active round functions for arbitrary round Piccolo-like structure was given.The results show that
under the condition that the round functions are all bijective
there are at least l active round functions for l-round Piccolo-like structure if l≥6
and there are at least l-1 active round functions for l-round Piccolo-like structure if l is 1
2
3
4
5.
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