Iwamoto-Watanabe Laboratory (IWL) is a research laboratory in Graduate School of Informatics and Engineering, the University of Electro-Communications (UEC). We design cryptographic algorithms and provide theoretical analyses of current cryptographic protocols by using mathematical tools such as complexity theory and information theory. We aim to consider every angle of security systems in collaboration with Sakiyama–Li–Miyahara Lab., Sugawara Lab., and Wang Lab., which are laboratories that mainly focus on hardware security.
We joined the project JST CREST “TRACE for IoT” in October 2023 as Advanced Cryptography Group.
Miyuki Sako won AIP Network Laboratory Special Award.
A paper on range zero-knowledge proofs was accepted to IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences.
Christopher Johann Clarke, Visiting Researcher at IWL, is staying at IWL.
Yuko Hara (CNRS, France) is staying at IWL.
A paper on Proof of Assets over hybrid blockchains was accepted at CoDecFin 2026.
Kota Sugimoto received ISEC Research Encouragement Award.
A poster by Sako et al. won the Best Poster Award at SCIS 2026.