Parameter selection of autocorrelation test for block ciphers

FAN Li-min1; FENG Deng-guo1; ZHOU Yong-bin1

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Parameter selection of autocorrelation test for block ciphers

更新时间：2024-10-14

- Parameter selection of autocorrelation test for block ciphers
- Vol. 30, Issue 7, Pages: 86-90(2009)
- 作者机构：
  
  1. 中国科学院软件研究所信息安全国家重点实验室
  2. 中国科学院研究生院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN918
- Published：2009
- 稿件说明：
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FAN Li-min1, FENG Deng-guo1, ZHOU Yong-bin1. Parameter selection of autocorrelation test for block ciphers[J]. 2009, 30(7): 86-90.
DOI：

FAN Li-min1, FENG Deng-guo1, ZHOU Yong-bin1. Parameter selection of autocorrelation test for block ciphers[J]. 2009, 30(7): 86-90. DOI：

摘要

自相关检测是一种用以检测一个长度为n的二元序列与其左移d位后序列的关联程度的随机性检测算法。d的选择范围很大

对所有参数逐一进行检测不现实

需要研究检测参数之间的关系。定义了检测参数之间可能存在的3种关系

以分组长度为m的分组密码随机性检测为对象

综合考虑分组密码和自相关检测的特点

利用统计实验研究了自相关检测参数子集D={1

m/4

m/2

3m/4

2m}中参数的关系。研究结果表明

对分组密码进行自相关检测时

检测参数应该首选d=m。该方法和结果为研究其他类型密码算法的随机性检测参数选择提供了新思路。

Abstract

Autocorrelation test was a statistical test to evaluate the correlation between one sequence and the corresponding non-cyclic left-shifted d bits sequence.It was impractical to adopt all the values of d since its range was often very wide.Three relations between parameters of randomness test were defined firstly.Then the relationships among the subclass D={1

m/4

m/2

3m/4

2m}of autocorrelation test for block cipher were studied by statistical experiments

where m was block length.The experiments show that the prefer choice of parameter d is m when doing autocorrelation test for block cipher.The method is also available for parameter selection of other randomness test for other types of cryptosystem.

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Related Institution

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