On affine sub-families of the NFSR in Grain

被引：0
|
作者：
Zhen Ma
Wen-Feng Qi
Tian Tian
机构：
[1] Zhengzhou Information Science and Technology Institute,State Key Laboratory of Mathematical Engineering and Advanced Computing
来源：
Designs, Codes and Cryptography | 2015年 / 75卷
关键词：
Stream ciphers; Nonlinear feedback shift registers; Families of NFSR sequences; Grain; 11B50; 94A55; 94A60;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Grain is one of eSTREAM hardware-oriented finalists. It uses a 160-bit NFSR as a primitive which is a cascade connection of an 80-bit LFSR into an 80-bit NFSR. In this paper, we study affine sub-families of the family of output sequences of this 160-bit NFSR and prove that it includes no affine sub-families of order greater than 31 or less than 28 except for an affine sub-family of order 2.
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页码：199 / 212
页数：13
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