1. 重庆邮电大学,重庆,400065
2. 解放军信息工程大学,河南,郑州,450004
3. 78179部队,四川,成都,611830
4. 信息保障技术重点实验室,北京,100000
5. 重庆邮电大学,重庆,400065
6. 解放军信息工程大学,河南,郑州,450004
7. 78179部队,四川,成都,611830
8. 信息保障技术重点实验室,北京,100000
纸质出版:2015
移动端阅览
黄永洪, 郭建胜, 罗伟. LBlock算法的相关密钥-不可能差分攻击[J]. 电子学报, 2015,43(10):1948-1953.
HUANG Yong-hong, GUO Jian-sheng, LUO Wei. Related-Key Impossible Differential Attacks on LBlock[J]. Acta Electronica Sinica, 2015, 43(10): 1948-1953.
黄永洪, 郭建胜, 罗伟. LBlock算法的相关密钥-不可能差分攻击[J]. 电子学报, 2015,43(10):1948-1953. DOI: 10.3969/j.issn.0372-2112.2015.10.011.
HUANG Yong-hong, GUO Jian-sheng, LUO Wei. Related-Key Impossible Differential Attacks on LBlock[J]. Acta Electronica Sinica, 2015, 43(10): 1948-1953. DOI: 10.3969/j.issn.0372-2112.2015.10.011.
该文研究了LBlock分组密码算法在相关密钥-不可能差分条件下的安全性.利用子密钥生成算法的差分信息泄漏规律
构造了多条低重量子密钥差分链
给出了15轮相关密钥-不可能差分区分器.通过扩展区分器
给出了23轮和24轮LBlock算法的相关密钥-不可能差分攻击方法.攻击所需的数据复杂度分别为2
65.2
和2
65.6
个选择明文
计算复杂度分别为2
66.2
次23轮LBlock算法加密和2
66.6
次24轮LBlock算法加密
存储复杂度分别为2
61.2
和2
77.2
字节存储空间.与已有结果相比
首次将针对LBlock算法的攻击扩展到了23轮和24轮.
In this paper
the strength of LBlock against related-key impossible differential attack is examined.Based on the differential information leakages in sub-key schedule
several sub-key differentials in low weight are constructed
and a 15-round related-key impossible differential distinguisher of LBlock is presented.By extending the distinguisher
related-key impossible differential attacks on 23-round LBlock and 24-round LBlock are presented.The data complexities of the attacks are 2
65.2
and 2
65.6
chosen-plain-text
respectively;the computing complexities of the attacks are 2
66.2
23-round LBlock encryptions and 2
66.6
24-round LBlock encryptions
respectively;the storage complexities of the attacks are 2
61.2
and 2
77.2
bytes of memory space
respectively.The cryptanalysis of reduced-round LBlock are first extended to 23-round and 24-round in this paper.
0
浏览量
2
下载量
3
CSCD
关联资源
相关文章
相关作者
相关机构
京公网安备11010802024621