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cs.CR2026
On the Additive FFT Techniques over Binary Extension Fields
Susanta Samanta, Mohammadtaghi Badakhshan, Guang Gong
Motivated by Bailey's four-step FFT algorithm (1989), we develop additive FFT techniques for polynomial evaluation over affine subspaces of binary extension fields. Our key insight…
cs.CR2026
Analyzing Linear Layers in Related-Differential Cryptanalysis
Yogesh Kumar, Akshay Ankush Yadav, Susanta Samanta
In AES-like ciphers, diffusion layers are commonly instantiated using MDS matrices, since their optimal branch number yields strong diffusion guarantees and underpins classical res…