Hardware-Efficient 5 × 5 S-Boxes With Strong Cryptographic Criteria for Lightweight Cryptography
Substitution boxes (S-Boxes) are essential nonlinear components in cryptography. This work presents a randomized, coordinate-function-first framework for constructing and selecting <inline-formula> <tex-math notation="LaTeX">$5\times 5$ </tex-math></inline-formula> S-Boxes. Balance is imposed by construction at the Boo...