Quantum Security and Network

Sub-Program director  ​

HANAOKA Goichiro  
​Principal Researcher,
Cyber Physical Security Research Center,
National Institute of Advanced Industrial Science and Technology 

Research overview 

We aim to build an integrated architecture with quantum/classical hybrids, including next-generation cryptography infrastructure, secure computation, and next-generation computing infrastructure. We will develop an advanced information processing infrastructure using the quantum secure cloud that combines quantum cryptography and secret sharing technology. We will also work on the development of secure computation technology that enables computation while data is encrypted. In parallel, we will accelerate the process from development to implementation and encourage the expansion of use cases through standardization and testbed construction. The result of these efforts will be the creation of a large-scale network of quantum/classical hybrid solvers spanning multiple fields, including finance, medicine, manufacturing, and mobility.   

In addition, by combining with technologies related to quantum network construction, which are being researched and developed outside of the SIP, such as quantum repeater technology, We will connect various quantum devices /systems for quantum computing and quantum sensing, thereby building secure and advanced communication network in the future toward the realization of our mission. 

R&D Subject B-1
Construction of advanced information processing infrastructure using quantum secure cloud ​

Connection between the data center and the Quantum Key Distribution (QKD) testbed, results in a highly functional and reliable, quantum secure cloud. adding digital signature and authentication functionalities using post-quantum cryptography (PQC) will create a "next generation cryptographic infrastructure" that is robust, highly available, and enables data storage/exchange. We will also build an "advanced information processing infrastructure" by connecting the "next-generation cryptographic infrastructure" with a "quantum/classical hybrid testbed" that enables secure and efficient use of quantum/classical computer resources. By opening the "advanced information processing infrastructure" to a wide range of users, we encourage the development of applications and expand the use of quantum technology in Japan. 

Research Theme B-1
Construction of advanced information processing infrastructure using quantum secure cloud

Head of R&D： MURAI Shinya（Toshiba Digital Solutions Corporation） 
Collaborative Research Institutes：National Institute of Information and Communications Technology, The University of Tokyo, NEC Corporation, TOPPAN Digital Inc., SAKURA internet Inc., IzumoBASE Inc., TOSHIBA CORPORATION 

R&D Subject​ B-2
Development and demonstration of use cases utilizing advanced information processing infrastructure

In collaboration with various users who handle sensitive information in business related with finance, medicine/genomics, manufacturing, and mobility, we will conduct an advanced demonstration of the core ICT infrastructure by integrating quantum technologies toward the social implementation of an advanced information processing using a quantum secure cloud. In addition, the project will also develop prospects for commercialization of use cases, and for the feasible cases, realize social implementation. 

Research Theme B-2
Development and demonstration of use cases utilizing advanced information processing infrastructure​​

Head of R&D：MURAI Shinya（Toshiba Digital Solutions Corporation） 
Collaborative Research Institutes：National Institute of Information and Communications Technology, The University of Tokyo, NEC Corporation, TOPPAN Digital Inc., SAKURA internet Inc., IzumoBASE Inc., TOSHIBA CORPORATION 

R&D Subject​ B-3
Use of secure computation and related technologies that enable data analysis while protecting privacy and other rights ​ 

In Japan, it is difficult to freely access various types of data due to risk about leakage and abuse of privacy and confidential information. In addition, while the usefulness of sharing information held by each organization cannot be determined until data sharing is tried, the dilemma is that it is difficult to try sharing privacy and confidential information in the situation where the usefulness is unclear. The use of secure computation technology, which enables computation in encrypted form, solves these problems and realizes "AI society with free data sharing based on safety and security".

Research Theme B-3a
Enhancement of secure computation technology ​

Head of R&D：SAKURAI Yoichi（NTT Communications Corporation） 

Research Theme B-3b
Research and development of resource-saving and practical secure multiparty computation systems  ​

Head of R&D：MATSUMOTO Tsutomu（National Institute of Advanced Industrial Science and Technology）
Collaborative Research Institutes： NRI SecureTechnologies, Ltd.,Nomura Research Institute, Ltd. 

Research Theme B-3c
Building social implementation examples of secure computation technology ​

Head of R&D： SAKURAI Yoichi（NTT Communications Corporation）
Collaborative Research Institutes： National Center for Child Health and Development, The University of Osaka, GMO Cybersecurity by Ierae, Inc.