Linear Cryptanalysis on Two Variants of CS-CIPHER

WU Wen-ling; QING Si-han

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Linear Cryptanalysis on Two Variants of CS-CIPHER

更新时间：2025-07-16

- Linear Cryptanalysis on Two Variants of CS-CIPHER
- Acta Electronica Sinica Vol. 30, Issue 2, Pages: 283-285(2002)
- 作者机构：
  
  1. 中国科学院信息安全技术工程研究中心,北京,100080
  2. 中国科学院软件研究所信息安全国家重点实验室,北京,100080
- 作者简介：
- 基金信息：
- DOI：
  CLC： TP391
- Published：2002
- 稿件说明：
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WU Wen-ling, QING Si-han. Linear Cryptanalysis on Two Variants of CS-CIPHER[J]. Acta Electronica Sinica, 2002, 30(2): 283-285.
DOI：

WU Wen-ling, QING Si-han. Linear Cryptanalysis on Two Variants of CS-CIPHER[J]. Acta Electronica Sinica, 2002, 30(2): 283-285. DOI：

摘要

CS-CIPHER是NESSIE公布的17个候选算法之一

它的分组长度为64-比特.本文对CS-CIPHER的两个变体进行了线性密码分析.对第一个变体的攻击成功率约为78.5%

数据复杂度为2

处理复杂度为2

.对第二个变体的攻击成功率约为78.5%

数据复杂度为2

处理复杂度为2

112

Abstract

CS-CIPHER is a block cipher as a candidate for NESSIE

whose block length is 64 bits.In this paper two variants of CS-CIPHER by linear cryptanalysis.The attack to the first variant needs 2

counters and 2

known-plaintexts.The success rate of attack is about 78.5%.The attack to the second variant needs 2

known-plaintexts and 2

112

counters.The success rate is about 78.5%.

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