关于
Provides professional-grade guidance for conducting differential cryptanalysis on the Fast Data Encipherment Algorithm (FEAL) and related Feistel networks. It emphasizes theoretical rigor over ad-hoc statistical methods, guiding users through the construction of specific input differentials, the development of multi-round differential characteristics, and the implementation of key recovery conditions. By focusing on the unique differential properties of round functions like FEAL's G-function, the skill helps developers and security researchers avoid common pitfalls while accurately verifying attack success through probability-based distinguishers and partial decryption techniques.
