Higher-order differential cryptanalysis

Higher-order differential cryptanalysis is a technique used to analyze the security of symmetric key ciphers, particularly block ciphers. It is an extension of traditional differential cryptanalysis that looks at the differences in the input and how they propagate through the rounds of encryption. ### Key Concepts 1. **Differential Cryptanalysis**: At its core, traditional differential cryptanalysis involves choosing pairs of plaintexts with specific differences, encrypting them, and studying the resulting differences in ciphertexts to find correlations.