Information security is the focus of attention, and the use of quantum technology to encrypt information is currently one of the most effective way. The first commercial quantum communication network, Ji'nan party and government organs of quantum communication network recently completed testing, security, safety, rate test have reached the design goal, the whole network is expected to the end of August this year officially put into use.
CCTV reporter Zhang Wei: here is the core room of the Ji'nan party and government organs quantum communication network, all communication data within the network, are here through professional equipment, quantum cryptography, and the surrounding hundreds of square kilometers, nearly 200 of secure communication terminal.
Ji'nan party and government organs quantum communications private network since May began testing, completed the test of more than 50 projects, the communication between all users to achieve the absolute confidentiality of more than 4000 passwords per second.
Little quantum effect
Quantum is the most basic, smallest, indivisible unit of energy. An unknown quantum state cannot be precisely cloned, and as long as someone tries to copy it, it will produce a bit error and will be discovered. These properties make the quantum state communication have absolute security in the transmission process. Ji'nan municipal Party and government organs quantum communication private network is the first commercially commercialized quantum communication network after the Ji'nan quantum communication test network. Ji'nan quantum communication test network is now the largest and most fully functional quantum communication metropolitan area network in the world.
A key international technology
According to Zhou Fei, assistant dean of the Ji'nan Institute of quantum science, the Ji'nan municipal Party and government authorities' quantum communications private network was completed in August as a demonstration in the fields of defense, finance, power and so on. Its success in testing is also a landmark achievement in China and even the global quantum communications industry.
Quantum communication technology is considered as the key technology to protect the confidentiality and privacy of future information society communication. At present, China is in the world leading level in the research of quantum communication technology. Europe, the United States, Japan and other developed countries, as well as many large international companies are competing to develop this technology.
