Introducing Our Research

The Security Fundamentals Laboratory conducts R&D on cryptographic primitives with new functionalities and lightweight cryptography to circumvent issues due to the development of IoT.

We also evaluate the security of currently used cryptographic techniques to contribute to securing ICT systems, and the security of emerging cryptographic techniques to promote market deployment and standardization.

Furthermore, we promote research on privacy enhancing technologies for personal data use and support technical countermeasures to privacy threats.

We propose cryptographic primitives with new functionalities that meet social demands that arise from emerging technologies. Essentially, searchable encryption, anonymous authentication, secure key revocation and updates, and lightweight cryptography tailored for implementation in constrained IoT devices, etc.

We evaluate securities of cryptographic technologies currently used for e-government and in ordinary society to keep them secure. We also research the security of new cryptographic technologies such as pairing-based cryptography, lattice-based cryptography, and so on.

Since 2000, we have organized CRYPTREC (CRYPTography Research and Evaluation Committees) to monitor and evaluate the security of e-government recommended ciphers and investigate and examine the appropriate implementation and operation of these cryptographic techniques.
URL: https://www.cryptrec.go.jp/en/

We propose technologies for personal data utilization without infringing on privacy. Our proposals include privacy preserving cryptographic technologies based on lattices. We also evaluate the privacy-risk of widely known technologies.