【摘要】：對輕量級分組密碼算法HIGHT在積分攻擊方法下的安全性進行了研究。首先糾正了現(xiàn)有研究成果在構(gòu)造區(qū)分器時的不當(dāng)之處,重新構(gòu)造了HIGHT算法的11輪積分區(qū)分器,并構(gòu)造了相應(yīng)高階積分?jǐn)U展下的17輪區(qū)分器;其次利用所構(gòu)造的17輪區(qū)分器,結(jié)合"時空折中"原理對25輪HIGHT算法進行了積分攻擊;最后對攻擊算法的復(fù)雜度進行了分析,攻擊算法需要的數(shù)據(jù)復(fù)雜度為2~(62.92),時間復(fù)雜度為2~(66.20),空間復(fù)雜度為2~(119)。分析結(jié)果表明,所給出的攻擊算法的攻擊輪數(shù)和時間復(fù)雜度要優(yōu)于現(xiàn)有研究結(jié)果。
[Abstract]:The security of lightweight block cipher algorithm HIGHT under integral attack is studied. Firstly, the shortcomings of the existing research results in the construction of classifiers are corrected, and the 11-round integrator of HIGHT algorithm is reconstructed, and the 17-round discriminator based on the corresponding higher-order integral extension is constructed. Secondly, 25 rounds of HIGHT algorithm are attacked by using the 17-wheel discriminator and the principle of "space-time compromise". Finally, the complexity of the attack algorithm is analyzed. The data complexity, time complexity and space complexity of the attack algorithm are 2 ~ (62.92), 2 ~ (66.20) and 2 ~ (119) respectively. The analysis results show that the number of attack rounds and the time complexity of the proposed attack algorithm are better than those of the existing research results.
【作者單位】： 解放軍信息工程大學(xué)三院;信息保障技術(shù)重點實驗室;西安衛(wèi)星測控中心;
【基金】：中國博士后科學(xué)基金資助項目(No.2014M562582)~~
【分類號】：TN918.1
，

本文編號：2398347