通信学报2025，Vol.46Issue(8)：66-77,12.DOI:10.11959/j.issn.1000-436x.2025136
轻量级LEA的代数统计故障分析
Algebraic statistical fault analysis of the lightweight LEA
摘要
Abstract
A novel ciphertext-only fault analysis method termed algebraic statistical fault analysis was proposed for en-hancing the implementation security of the LEA in light of its structural and implementation characteristics.Based on the random nibble-oriented fault model,algebraic relationships were analyzed and constructed,and coupled with statistical inference between pre-injection and post-injection intermediate states,the LEA was decrypted.Additionally,Hellinger distance,Hellinger distance-Hamming weight,and Hellinger distance-maximum likelihood distinguishers were designed.Experimental results demonstrate that the proposed method extends fault injection to an additional deeper round,and the novel distinguisher successfully recovers the 128 bit secret key of the LEA with a minimum of 72 fault injections,provid-ing valuable references for security evaluation of other cryptographic algorithms in smart small devices.关键词
LEA/轻量级密码/密码分析/代数关系/智能小型设备Key words
LEA/lightweight cipher/cryptanalysis/algebraic relation/smart small device分类
信息技术与安全科学引用本文复制引用
李玮,张爱琳,王弈,谷大武,李诗雅..轻量级LEA的代数统计故障分析[J].通信学报,2025,46(8):66-77,12.基金项目
国家自然科学基金资助项目(No.62472286) （No.62472286）
上海市自然科学基金资助项目(No.24ZR1401300) （No.24ZR1401300）
上海市扬帆计划基金资助项目(No.23YF1401000) （No.23YF1401000）
中央高校基本科研业务费专项资金资助项目(No.223202D-25) （No.223202D-25）
数字化纺织服装技术教育部工程研究中心自主研究课题基金资助项目 The National Natural Science Foundation of China(No.62472286),The Natural Science Foundation of Shang-hai(No.24ZR1401300),Shanghai Sailing Plan(No.23YF1401000),The Fundamental Research Funds for the Central Universities(No.223202D-25),The Research Fund of Engineering Research Center of Digitalized Textile and Fashion Technology,Ministry of Education （No.62472286）
