The government plans to accelerate its research and development of quantum cryptography technology with the goal of putting it into practical use starting in 2025, sources have said.

The next-generation technology is seen as allowing greater encryption security for diplomatic and business correspondence, and Japan is trying not to fall behind nations like the United States and China, which have invested in quantum information science.

The government wants an environment in 2025 where quantum encryption can be used across Japan and will study how to use optical fiber networks already in place, the sources said Friday.