Differential fault analysis on the SMS4 cipher by inducing faults to the key schedule

LI Wei; GU Da-wu

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Differential fault analysis on the SMS4 cipher by inducing faults to the key schedule

更新时间：2024-10-14

- Differential fault analysis on the SMS4 cipher by inducing faults to the key schedule
- Issue 10, Pages: 135-142(2008)
- 作者机构：
  
  上海交通大学计算机科学与工程系
- 作者简介：
- 基金信息：
- DOI：
  CLC： TP309.7
- Published：2008
- 稿件说明：
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LI Wei, GU Da-wu. Differential fault analysis on the SMS4 cipher by inducing faults to the key schedule[J]. 2008, (10): 135-142.
DOI：

LI Wei, GU Da-wu. Differential fault analysis on the SMS4 cipher by inducing faults to the key schedule[J]. 2008, (10): 135-142. DOI：

摘要

提出并讨论了一种针对SMS4密钥编排方案的差分故障攻击方法。该方法采用面向字节的随机故障模型

通过在SMS4算法的密钥编排方案中导入故障

仅需要8个错误密文即可恢复SMS4算法的128bit原始密钥。数学分析和实验结果表明

该方法不仅扩展了故障诱导的攻击范围

而且提高了故障诱导的攻击成功率

减少了错误密文数

为故障攻击其他分组密码提供了一种通用的分析手段。

Abstract

On the basis of the byte-oriented fault model and the differential analysis

a differential fault analysis on the SMS4 cipher by inducing faults in its key schedule was proposed.Mathematical analysis and simulating experiment show that the attack could recover its 128-bit secret key by introducing only eight faulty ciphertexts.Simultaneously

a method of distinguishing effective faults was presented to increase the efficiency of fault injection and decrease the num-ber of faulty ciphertexts.Thus

experiment results are beneficial to the analysis of other iterated block ciphers.

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