Willi Meier

Prof. Dr. Willi Meier serves as a Lecturer for mathematics and cryptology at the Institute for Sensors and Electronics within the School of Engineering and Environment at FHNW (University of Applied Sciences and Arts Northwestern Switzerland) in Windisch, Switzerland. With an extensive publication record spanning over three decades (1988-2025), he maintains an active research profile in cryptographic analysis.

Dr. Meier's research primarily focuses on cryptanalysis of symmetric cryptographic primitives, with particular expertise in stream ciphers, block ciphers, and hash functions. His work frequently employs algebraic techniques, differential cryptanalysis, and mathematical modeling approaches to analyze cryptographic security. Recent research has centered on analyzing modern ciphers like Grain, Keccak, RIPEMD-160, and various lightweight cryptographic designs, often developing novel attack methodologies such as coefficient grouping and algebraic meet-in-the-middle approaches.

His publication trends over the last five years show consistent high productivity in top-tier venues including CRYPTO, EUROCRYPT, ASIACRYPT, and IACR Transactions on Symmetric Cryptology. The research spans both theoretical advancements in cryptanalytic techniques and practical applications to real-world cryptographic standards. A significant portion of his recent work involves collaborations with international researchers, particularly Fukang Liu, Takanori Isobe, and Santanu Sarkar, reflecting his integration within the global cryptographic research community.

Dr. Meier's work has practical implications for cryptographic standardization and implementation security, with analyses of protocols used in telecommunications (TETRA), lightweight IoT applications, and post-quantum cryptographic candidates. His research continues to contribute to the fundamental understanding of symmetric cryptographic primitives and their security margins.