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The Cryptographics Algorithms AES and Twofish guarantee a high diffusion
with the use of fixed MDS matrices of size 4 × 4. In this article variations to the
Cryptographics Algorithms AES and Twofish...
Twofish算法中密钥相关S-盒的差分性质分析及其改进
Twofish 差分分析 S-盒
2009/5/8
该文从理论上证明了Twofish算法中,密钥越长,密钥相关S-盒的差分概率就越小,提出了一种新的与密钥作用的方式来产生密钥相关S-盒的方法,理论与测试结果表明新的S-盒的"异或"差分概率和"模加"差分概率比原算法的差分概率要小.
The Saturation Attack - a Bait for Twofish.
Characteristics of Key-Dependent S-Boxes: the Case of Twofish
key-dependent s-boxes linear cryptanalysis differential cryptanalysis
2009/2/5
In this paper we analyze and discuss the cryptographic ro-
bustness of key-dependent substitution boxes (KDSBs); these can be
found in some symmetric-key algorithms such as Khufu, Blowfish, and
the...