电子学报2024，Vol.52Issue(3)：709-718,10.DOI:10.12263/DZXB.20220311
两类动态密码结构抵抗不可能差分和零相关线性能力评估
Security Evaluation Against Impossible Differential Cryptanalysis and Zero Correlation Linear Cryptanalysis for Two Dynamic Cryptographic Structures
摘要
Abstract
The design and analysis of dynamic block ciphers are the frontier of current cryptography research.For CLEFIA-like dynamic cryptographic structure and four-block CLEFIA-like transform cluster,this paper focuses on the se-curity evaluation against impossible differential cryptanalysis and zero correlation linear cryptanalysis.When the round functions of the two dynamic cryptographic structures are bijective,by studying the commutative properties of the modules,the fact that the two dynamic cryptographic structures are permutation equivalence of the two static structures respectively can be proved.With the established equivalence relation,by constructing the impossible differential and zero correlation dis-tinguishers of two static structures,8-round impossible differentials and zero correlation linear hulls of 4n-round CLEFIA-like dynamic cryptographic structure can be found as well 9-round ones for 4n-round four-block CLEFIA-like transform cluster.关键词
分组密码/动态密码/类CLEFIA动态密码结构/四分组CLEFIA变换簇/不可能差分/零相关线性Key words
block cipher/dynamic cryptographic structure/CLEFIA-like dynamic cryptographic structure/four-block CLEFIA-like transform cluster/impossible differentials/zero correlation linear hulls分类
信息技术与安全科学引用本文复制引用
沈璇,刘国强,孙兵,何俊..两类动态密码结构抵抗不可能差分和零相关线性能力评估[J].电子学报,2024,52(3):709-718,10.基金项目
国家自然科学基金(No.62002370,No.62272470,No.61702537) （No.62002370,No.62272470,No.61702537）
国防科技大学科研计划项目(No.ZK21-36) （No.ZK21-36）
信息安全国家重点实验室开放基金(No.2020-MS-02) National Natural Science Foundation of China(No.62002370,No.62272470,No.61702537) （No.2020-MS-02）
Scientific Research Plan of National University of Defense Technology(No.ZK21-36) （No.ZK21-36）
State Key Laboratory of Informa-tion Security(No.2020-MS-02) （No.2020-MS-02）
