Lectures in charge

• Introduction to Number Theory
• Cryptography, Authentication, and Social Systems
• Cryptography
• Research Guidance
• Special Studies in Information Security

Course

Mathematical Science Course, Cyber Security and Governance Course

Profile

He received his B.S. and M.S. degrees from Kyoto University and his Engineer degree from Chuo University. Before joining Institute of Information Security at April 2004, he worked for NEC from 1990 to 2003.

Research Achievement

1. Seiko Arita, Shota Nakasato, Fully Homomorphic Encryption For Point Numbers, preprint.
2. Hiroaki Anada, Seiko Arita, Kouichi Sakurai, Attribute-Based Two-Tier Signatures: Definition and Construction, ICISC2015, Seoul, Korea, Nov. 2015.
3. Seiko Arita, Sari Handa, Two Applications of Multilinear Maps: Group Key Exchange and Witness Encryption, ASIAPKC 2014, pp.13-22, June 2014.

Research Themes

• My research interests are in foundation and application of cryptographic theory to realize secure protocols.
• Foundation - basic theory for protocol primitives such as key agreement protocol, zero-knowledge proof and commitment scheme.
• Application - applications of cryptography technology such as threshold encryption, searchable encryption, attribute-based encryption and proof of storage.