"Impossible to break": China and the Russian Federation stated that they have established a quantum communication through satellites

Scientists intend to create a quantum communication network for Brix, Brazil, Russia, India, China and South Africa. Scientists from Russia and China were allegedly able to adjust the communication line protected by quantum data encryption. They used the security keys transmitted by the Chinese quantum satellite Mozi, reports South China Morning Post.

The media writes that the researchers have managed to transfer two coded images protected by quantum keys from the ground station located near Moscow to a station located in Urumchi in the Western Chinese region of Sinjiang. The information overcame 3800 km, thanks to the Chinese quantum satellite Mozi. With his help, scientists hope to develop national and international quantum networks that will be much better protected. Quantum is known to use cryptography to encode data in single photons.

The encrypted data is transmitted as units and zeros together with the quantum key used to decrypt the data. Quantum keys are, in fact, the lines of random bits that ensure the safety of data "at the physical level". Russian scientists claim that these keys cannot be broken.

Despite significant progress in the development of quantum key distribution, ground transmission at reasonable speeds using fiber optic cables is limited 1000 km, and the greater the distance, the more photons are lost by the road. Due to this restriction, researchers were unable to transmit quantum keys, from one region of the Russian Federation to another. To solve this problem, in 2016, China launched Mozi - a quantum satellite to provide quantum data transmission over long distances.

"Using this satellite, China was able to create a national quantum network of land stations covering thousands of kilometers," the material reads. According to Russian scientists, in 2020 they began to work with Chinese researchers who helped them set up systems to conduct experiments with Mozi satellite. A ground station equipped with telescopes and cameras to track the satellite was created in the Podmovna Zvenigorod Observatory.

Various experiments were conducted between the ground station in Zvenigorod and the Chinese terrestrial station Nanshan near Urumchi. According to the Russians, quantum systems are ideally suited for research. They stressed that "additional research is needed before the technology is commercialized.

" "Russia has also offered the countries of Brix - Brazil, India, South Africa - to participate in the development of quantum networks, as they believe that it is technically possible to build a quantum network between Brix countries," the media writes. Earlier, we have reported why scientists are in a hurry to introduce a new post-quantic data encryption method is the fact that an algorithm used to protect information since 1977, any quantum computer will be able to break easily.