組織通信・組織暗号・S/MIME 普及戦略

―自由・安全・プライバシーの三止揚を目指して―

抄録

Cyberspace is rapidly changing based on the development of Big data, Open data, Cloud and My number (BOCM). While these developments help expand freedom, they are also bringing the serious problems of security and protection of privacy to the forefront. These three issues are apt to contradict each other. Thus, our society is in urgent need of 3 (drei) Aufheben. To achieve this Drei Aufheben, cooperation of Management, Ethics, Law and Technology (MELT up) is essential. We will consider this problem with concrete experiments applying an organizational encryption system which we recently developed for local governments and medical organizations. Experiments were conducted in the local governments of Nagano, Nigata, Hyogo and Oita prefectures and a medical institution in Kyoto prefecture. Finally, in order to sharply reduce advanced and persistent cyberattacks, we propose a strategy for the diffusion of S/MIME (Secure/Multipurpose Internet Mail Extensions) among important infrastructures, governmental organizations, various enterprises, and other organizations.