South Korean media: "Unbreakable by quantum computers", China leads the world in security systems!
On June 6, the Chosun Ilbo, a South Korean media outlet, published an article stating that China Telecom's Quantum Information Technology Group has launched the world's first commercial encryption system that cannot be cracked even by quantum computers. Analysts believe that China is at the forefront of the global security system.
China Telecom's Quantum Group created and released an encryption system integrating "Quantum Key Distribution (QKD)" technology and "Post-Quantum Cryptography" technology. Quantum encryption key distribution technology is a method of securely transmitting encryption keys using the principles of quantum mechanics, while post-quantum encryption protects data using complex mathematical problems that are difficult for quantum computers to solve. China Telecom also announced that it successfully achieved the world's first quantum encrypted phone call over approximately 1000 kilometers between Beijing and Hefei using this system.
According to China Telecom, the system released this time adopts a three-tier architecture and has been tested in real-world environments. Analysts believe that it has reached the stage where it can be widely commercialized.
China Telecom has built "quantum metropolitan networks" in 16 key cities including Beijing, Shanghai, Guangzhou, and Hefei. It is a network that uses quantum encryption technology within a city to exchange information like existing internet networks, but due to the quantum encryption key distribution technology, eavesdropping or hacking is impossible.
Among them, the Hefei network is known as the largest in the world, with 159 access points and a 1147-kilometer fiber-optic quantum network. Currently, more than 500 government agencies and 380 state-owned enterprises are using it.
China is currently the only country where quantum security technology has reached the commercialization stage. The United States, Europe, Japan, and others are still in the testing phase. The U.S. mainly tests quantum security systems through military and defense agencies, while Europe remains focused on academic research. On the other hand, China has established an integrated network connecting governments, businesses, and infrastructure.
China is vigorously developing quantum cryptography systems because with the rapid development of quantum computers, existing cryptographic technologies are becoming increasingly vulnerable to attacks.
Peng Chengzhi, chief scientist of China Telecom Quantum and professor at the University of Science and Technology of China, stated in the report: "With the development of quantum computers, existing public-key-based cryptographic systems will face increasing threats."
Original source: https://www.toutiao.com/article/1834153572867081/
Disclaimer: This article solely represents the author's personal views.