Akira Otsuka (Member, IEEE) received the Ph.D. degree from The University of Tokyo, in 2002. Since 2005, he has been with the National Institute of Advanced Industrial Science and Technology (AIST), where he was the Leader of Research Security Fundamentals, from 2006 to 2010. From 2007 to 2014, he was a Visiting Professor with the Research and Development Initiative, Chuo University. Since 2017, he has been a Professor with the Graduate School of Information Security, Institute of Information Security. From 2020 to 2021, he was a Visiting Researcher with the Financial Research Institute, Bank of Japan. He is a Senior Member of IEICE and IPSJ, and a member of JSAI, IACR, and IFCA.