Toshiba Quantum Cryptography Commercialization What is "Unbreakable" Cryptography? October 19th, 21:41
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Toshiba officially announced that it will commercialize the next-generation unbreakable cryptographic technology called "quantum cryptography" in Japan, Europe and the United States next year.
As development competition with China and other countries intensifies, we would like to partner with major European and American telecommunications companies to take the top share in the world.
"Quantum cryptography" is a next-generation cryptographic technology that cannot be decrypted even by a quantum computer with computing power far exceeding that of a supercomputer.
Toshiba has officially announced that it will commercialize this quantum cryptography communication in Japan, Europe and the United States next year.
In Japan, we have received an order from the government as a security measure for communication networks, and this is the first commercialization in Japan.
For overseas commercialization, we have partnered with "British Telecom" in the United Kingdom and "Verizon Communications" in the United States.
International competition for quantum cryptography is intensifying, with China setting a policy to spread it throughout the country by 2025.
Toshiba has led research and development with the largest number of patents held in this field in the world, but we aim to be the first to expand our business in Japan and overseas and to hold the top share in the world.
Why can't I decipher it?
"Cryptography" technology, which exchanges important information so that it is not known to third parties, has become indispensable in the field of information and communication.
Currently, commonly used ciphers are made up of combinations of numbers called "prime numbers", and it has been pointed out that the risk of being decrypted increases as the computing power of computers increases dramatically.
Under these circumstances, "quantum cryptography" is attracting attention as "absolutely unbreakable" using any computer.
"Quantum cryptography" is a technology that applies the "quantum mechanics" of physics, which shows the movement and behavior of extremely small substances such as "photons," which are the smallest units of light.
In addition to the encrypted data,
we send information that is the "key required to decrypt".
According to Masahiro Takeoka, director of the National Institute of Information and Communications Technology, who has been working on quantum cryptography for many years, the feature is that this "key" information is divided and sent on each "photon".
According to quantum mechanics, the state of a "photon" changes when it is observed, so the moment someone steals the information of the "key", the state of the "photon" changes, so it was stolen. You can notice.
With this technology, when it is detected that it has been stolen, that information is automatically invalidated, and a new key is automatically recreated using only the remaining information that has not been stolen.
Director Takeoka said that Japan is the world leader in the field of quantum cryptography. "Europe, the United States and China are competing with development, but Toshiba's products have the ability to send" key "information. It is many times higher than the above and boasts the highest reliability in the world. On the other hand, since it is a new technology, the issue is how to incorporate it into society, and in Japan, we are the first in the world to work on a demonstration experiment to protect medical information. In the future, it will be necessary to cooperate with the telecommunications infrastructure business to turn it into a business. "
Toshiba “World's Top Standard”
Nobuya Murai, project manager of Toshiba, who is working on the development of quantum cryptography, said, "Quantum cryptography can detect cyber attacks that try to steal data by placing data on light particles = photons. Encrypted The point is that the "encryption key" for opening data can be delivered to the other party in an absolutely secure form. "
Mr. Murai said that he is at the top level in the world in terms of communication speed and stable communication distance, and said, "From the point of handling extremely confidential information such as government agencies, financial institutions or medical institutions. I think we will enter. Ultimately, we would like to aim to provide services on a wide range of nationwide scale. "
Intensifying development competition in the world
In communications such as the Internet, various data are encrypted and exchanged, but when "quantum computers", which have much higher computing power than supercomputers, come into full-scale use, they are now in use. The code can be easily broken.
For this reason, in the future, in order to protect highly confidential information not only from the viewpoint of private business but also from the aspect of national security, it is said that "quantum cryptography communication" that can never be decrypted using quantum is indispensable. Toshiba expects that the global market size will exceed 2 trillion yen by 2035.
Under these circumstances, China has already put it into practical use in the fields of finance and justice, and is making efforts to spread it throughout China by 2025. South Korea is also a Swiss company whose local telecommunications giant has quantum cryptography technology. International development competition is intensifying, such as the acquisition and commercialization of.
Chief Cabinet Secretary Kato "Important technologies that will support future economic society"
Chief Cabinet Secretary Kato said at a press conference in the morning, "'Quantum cryptography' has been promoting research and development as an important technology that will support the future economy and society, and Toshiba and other domestic related companies are participating in this. I know that it is an important technology related to security, and I would like to continue to support research and development and practical application. "