What is the main focus of Differential Cryptanalysis?

Differential Cryptanalysis primarily involves studying how differences in input can affect the resultant difference at the output of a cryptographic algorithm. This method analyzes the effect of specific changes in the plaintext on the ciphertext produced by encryption algorithms. By observing how certain bits in the plaintext affect bits in the ciphertext, cryptanalysts can derive meaningful information about the structure and weaknesses of the encryption algorithm.

This focus on analyzing resultant differences is fundamental because it allows an attacker to recover secret keys or find vulnerabilities in the encryption methods. Differential Cryptanalysis is particularly applicable to block ciphers and has significant implications in the design of robust cryptographic systems.

Other options do not align with this specific focus. Enhancing the speed of algorithms speaks to performance optimization rather than a method of analysis, mathematical equations might pertain to a variety of cryptographic methods but do not specifically address the operational mechanics of Differential Cryptanalysis, and the statistical analysis of language patterns is more relevant to techniques like frequency analysis in classical cryptography, rather than the differential approach.