“In cryptography, it is important not only that the numbers are random, but that you are the only one who knows about them. With QRNG, we can certify that a large amount of generated bits are private and thus completely secure. And if the laws of quantum physics are true, it should be impossible to hear it without the recipient knowing,” says Guilherme B. Xavier, a researcher at the Department of Electrical Engineering at Linköping University.
His research team, together with researchers from the Department of Physics, Chemistry and Biology (IFM), have created a new type of QRNG that can be used for encryption, betting and computer simulation.
The use of light-emitting diodes made of the crystal-like substance perovskite is a new aspect of the QRNG developed by the Linköping researchers.