Security News > 2022 > July > Researchers create key tech for quantum cryptography commercialization

They use quantum keys that guarantee security based on quantum physics rather than computational complexity, thus they are secure even against quantum computers.

Quantum key distribution is the most important technology for realizing quantum cryptosystems.

In TF QKD, two users can distribute a key by transmitting quantum signals to an intermediate third-party that is for measurement.

The Korea Institute of Science and Technology announced that their research team, the Center for Quantum Information, led by director Sang-Wook Han, succeeded in an experimental demonstration of a practical TF QKD network.

A conventional TF QKD system requires many control systems, such as timing, wavelength, phase, and polarization controllers, to maintain the indistinguishability of two quantum signals emitted by two users' different light sources.

"It is a significant research achievement showing the possibility of solving the two main obstacles to QKD commercialization, and we have gained a key technology leading the corresponding research," said Sang-Wook Han, the leader of the Center for Quantum Information.

News URL

https://www.helpnetsecurity.com/2022/07/29/quantum-cryptography-commercialization/