摘要
该文采用面向字的随机故障模型,结合差分分析技术,评估了SHACAL-2算法对差分故障攻击的安全性。结果显示:SHACAL-2算法对差分故障攻击是不免疫的。恢复出32 bit子密钥的平均复杂度为8个错误密文,完全恢复出512 bit密钥的复杂度为128个错误密文。
By using word-oriented fault model and the technique of differential cryptanalysis, the security of SHACAL-2 against differential fault analysis is evaluated. Result shows that SHACAL-2 is not immune to such kind of attack. 8 faulty ciphertexts can recover a sub key of 32 bit on average and 128 faulty ciphertexts are needed to recover all the 512 bit keys.
出处
《电子与信息学报》
EI
CSCD
北大核心
2010年第2期318-322,共5页
Journal of Electronics & Information Technology
基金
国家自然科学基金(60803156)
信息安全国家重点实验室开放基金(01-07)资助课题