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Iwamoto-Watanabe Lab
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The lab studies cryptography from a theoretical perspective and examines its security.
AboutAbout the lab
Studying cryptography from a theoretical perspective
The Iwamoto-Watanabe Lab studies cryptography from a theoretical perspective.
Using discrete mathematical tools such as computational complexity theory and information theory, the lab works on devising new cryptographic schemes and evaluating their security theoretically.
The lab's main research themes are the security and implementation of information security systems, with mathematics as its basic tool.
Working together with the Sakiyama-Li-Miyahara Lab, the Sugawara Lab, and the Wang Lab, which focus on cryptographic implementation, the lab aims to examine information security systems from multiple angles.
Key terms
- Computational complexity theory
- A theory that uses mathematics to study how much effort, such as time and memory, a computation requires.
- Information theory
- A theory that mathematically treats the amount of information and the limits of how it can be communicated.
- Discrete mathematics
- A field of mathematics that deals with discrete objects, such as logic, sets, and mappings.
NewsLab news
Paper accepted at the international conference IMACC 2026
Multiple papers accepted at the international conference ESSS 2026
ResearchResearch themes
The lab studies cryptography from a theoretical perspective, working on devising new cryptographic schemes and evaluating their security theoretically. It examines information security systems using discrete mathematical tools such as computational complexity theory and information theory.
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MembersFaculty
The members of the Iwamoto-Watanabe Lab consist of faculty, project researchers, JSPS Research Fellows, administrative assistants, doctoral, master's, and undergraduate students, visiting faculty and researchers, and researchers on extended stays.As of 2026
- ProfessorMitsugu Iwamoto
- Associate ProfessorYohei Watanabe
VoicesStudent voices
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Write a lab reviewAnonymous · Your draft is saved if you stopRelatedLabs similar to Iwamoto-Watanabe Lab
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Sugawara LabSchool of Informatics and Engineering, Class II (Fusion)Security / cryptography / sensorsThe information on this page is compiled by the LabLog team from the lab's public information and interviews. For corrections or removal requests, please contact LabLog, not the lab.
Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Crypto rings from a Enigma. ( )” Simon Claessen from The Netherlands / CC BY-SA 2.0 (cropped)
- Security and Implementation of Information Security Systems: “Asymmetric encryption scheme” MarcT0K (icons by JGraph) / CC BY 4.0 (cropped)
- Related lab (大濱 靖匡・Santoso Bagus 研究室): “NASA secure communication console at National Cryptologic Museum.agr” ArnoldReinhold / CC BY-SA 4.0 (cropped)
- Related lab (﨑山 一男・李 陽・宮原 大輝 研究室): “Smart-Card-Chip back” jailbird / CC BY-SA 3.0 de (cropped)
- Related lab (栗原 正純 研究室): “Data storage mediums” Unnerving duck / CC0 (cropped)
- Related lab (菅原 健 研究室): “Car parking sensor closeup” Shixart1985 / CC BY 2.0 (cropped)
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