Unit Leader

Carlos Cid

Carlos established the Applied Cryptography Unit at OIST in April 2022. As adjunct professor, he spends around two months per year in Okinawa – otherwise he leads the unit's activities remotely from Norway. Carlos is an experienced cryptographer and cyber security researcher and educator. His interests range from algebraic cryptanalysis to quantum cryptography, from secure computation to cyber economics. See here for more details. Originally from Brazil, Carlos has also lived in the UK, Ireland, Germany and Norway. He is an avid traveller, and has been visiting Japan regularly – for business and pleasure – since 2009. 

Postdoctoral Scholar

Shashank Gupta

Shashank has an Integrated Ph.D. in Theoretical Physics (2015-21) from S. N. Bose National Centre for Basic Sciences, Kolkata, India. He has worked on the foundations and applications of the multipartite quantum resources during his Ph.D. tenure. He then joined QNu Labs, an Indian start-up working on the field of Quantum Cryptography as a Senior Research Associate (2021-23). He along with a dedicated team of engineers worked on breaking distance barriers in quantum key distribution parallelly creating novel quantum-safe solutions for the post-quantum era. Currently, he is a post-doctoral researcher at the Applied Cryptography Unit at OIST, Japan led by Prof. Carlos Cid. His research interest includes but not confined towards Quantum Multi-party computation on quantum network, Quantum simulator for quantum communications, Quantum Cryptography and Post-Quantum Cryptography. Besides research, he is driven towards investing, sketching, and deciphering.

Unit Administrator

Megumi Ikeda

My task is to provide research administration, ensuring unit members don’t get lost in paperwork and let them spend more time on their research instead. I am not trained as a researcher, but it is very exciting to observe their research up close.