May 2017 Vol. 15 No. 552017

https://www.ntt-review.jp/archive/2017/201705.html

Front-line Researchers
Kazuhide Nakajima, Senior Distinguished Researcher,
NTT Access Network Service Systems Laboratories

Feature Articles
Security Concerns—Growing Threats
and Business Opportunities
Research and Development of Security Concerns
Relating to Growing Threats and Business Opportunities
Secure Architecture for Critical Infrastructure
Cyber-attack Countermeasures for Cars
A Secure Business Chat System that Prevents Leakage
and Eavesdropping from the Server by Advanced
Encryption Technology
Key Points of the Amendments to the Act on theProtection of Personal Information, and Anonymization
Methods for the Use of Personal Data

Regular Articles
Discovery of a Stable Molecular State Consisting of Photons and an Artificial Atom

Front-line Researchers

Kazuhide Nakajima, Senior Distinguished Researcher, NTTAccess Network Service Systems Laboratories▼Overview
Data communications in Japan currently exceeds 2.5 Tbit/s, but it is predicted thatdemand will rise to 10 Pbit/s by the late 2020s. This forecast is creating concern thatthe transmission capacity of the existing optical fiber infrastructure could reach its
limit. Kazuhide Nakajima is a Senior Distinguished Researcher at NTT AccessNetwork Service Systems Laboratories, where researchers are working to solve thisfast-approaching problem. We asked him about the latest research achievements inthis field and his mindset as a researcher.

Feature Articles
Security Concerns—Growing Threats and Business Opportunities

Research and Development of Security Concerns Relating toGrowing Threats and Business Opportunities▼Abstract

The Internet of Things era has resulted in many devices
with security vulnerabilities being connected to networks,
and this is resulting in a rapid increase in the number ofsecurity threats in new areas such as infrastructure
facilities that have up to this point been regarded as safe.
On the other hand, it is also creating new business
opportunities with the utilization of diverse information. Thisarticle introduces the security research and development
strategy of NTT laboratories from two perspectives: defeating new threats based on an understanding ofenvironmental changes of this nature, and strengthening the competitiveness of our business.

Global Standardization Activities

Regular Articles

Creating a New Ecosystem for NFV/SDN Technical and Business Development: the Challenge of
NTT Laboratories and Dimension Data APAC

Discovery of a Stable Molecular State Consisting of Photons
and an Artificial AtomInformation
Event Report: NTT R&D Forum 2017

Short Reports
Soft Error Test Service Commences to Reproduce Soft Errors—Abnormal Operation of Electronic
Equipment Caused by Cosmic Rays

▼Abstract

In a joint study with the National Institute of Information
and Communications Technology and the Qatar
Environment and Energy Research Institute, we haveconducted experiments to alter the strength ofinteractions between a superconducting artificial atomand microwave photons. We have confirmed theexistence of a qualitatively new lowest energy groundstate where an artificial atom is dressed with virtualphotons to form a novel type of molecule. Our research makes it possible to control the interactions
between matter and light over a range of energies orders of magnitude higher than has hitherto beenpossible. This is expected to have applications in quantum technologies including quantum communication,
quantum computing, and next-generation ultraprecise atomic clocks.