| DBlock密码算法差分故障分析 |
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| 引用本文： | 李浪,邹祎,李株华,刘波涛.DBlock密码算法差分故障分析[J].计算机科学,2017,44(7):116-119. |
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| 作者姓名： | 李浪 邹祎 李株华 刘波涛 |
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| 作者单位： | 衡阳师范学院计算机科学与技术学院 衡阳421002;智能信息处理与应用湖南省重点实验室 衡阳421002;湖南大学信息科学与工程学院 长沙410082,衡阳师范学院计算机科学与技术学院 衡阳421002;智能信息处理与应用湖南省重点实验室 衡阳421002,衡阳师范学院计算机科学与技术学院 衡阳421002;智能信息处理与应用湖南省重点实验室 衡阳421002,衡阳师范学院计算机科学与技术学院 衡阳421002;智能信息处理与应用湖南省重点实验室 衡阳421002 |
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| 基金项目： | 本文受国家自然科学基金资助 |
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| 摘 要： | DBlock算法是于2015年提出的一种新型分组密码算法,算法分组长度与对应密钥长度为128bit、192bit和256bit,均迭代20轮。基于字节故障模型,并利用基于密钥扩展的差分故障分析方法,在密钥扩展算法运行至第17轮时导入随机故障,对DBlock算法进行差分故障分析。实验结果表明,仅需要4次故障密文便可恢复算法的128bit初始密钥。
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| 关 键 词： | 分组密码 DBlock 差分故障分析 |
| 收稿时间： | 2016/5/6 0:00:00 |
| 修稿时间： | 2016/8/3 0:00:00 |
Differential Fault Analysis on DBlock Cipher Algorithm |
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| LI Lang,ZOU Yi,LI Zhu-hua and LIU Bo-tao.Differential Fault Analysis on DBlock Cipher Algorithm[J].Computer Science,2017,44(7):116-119. |
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| Authors: | LI Lang ZOU Yi LI Zhu-hua and LIU Bo-tao |
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| Affiliation: | College of Computer Science and Technology,Hengyang Normal University,Hengyang 421002,China;Hunan Provincial Key Laboratory of Intelligent Information Processing and Application,Hengyang 421002,China;College of Information Science and Engineering,Hunan University,Changsha 410082,China,College of Computer Science and Technology,Hengyang Normal University,Hengyang 421002,China;Hunan Provincial Key Laboratory of Intelligent Information Processing and Application,Hengyang 421002,China,College of Computer Science and Technology,Hengyang Normal University,Hengyang 421002,China;Hunan Provincial Key Laboratory of Intelligent Information Processing and Application,Hengyang 421002,China and College of Computer Science and Technology,Hengyang Normal University,Hengyang 421002,China;Hunan Provincial Key Laboratory of Intelligent Information Processing and Application,Hengyang 421002,China |
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| Abstract: | DBlock algorithm is a new type of block cipher algorithm proposed in 2015. The packet length and its corresponding key length are 128bit,192bit and 256bit,with 20-round iterations of each.Based on byte fault model,the differential fault analysis on the DBlock was used on the key expansion to import a random fault in the 17th round.Experimental results show that the analysis can recover its primitive 128bit key only by introducing four fault ciphertexts. |
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| Keywords: | Block cipher DBlock Differential fault analysis |
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