encryption

Researchers created a quantum key distribution (QKD) system based on integrated photonics that transmits secure keys at unprecedented speeds. This is an important step toward real-world application of the highly secure communication method.…

Researchers created a metasurface device that can display three types of images depending on illumination. They envision that the three-channel device can be instrumental as an anti-counterfeiting measure or in delivering encrypted…

Until now, it has been only technically possible to implement encryption mechanisms with entangled photons in the near-infrared range of 700 to 1550 nanometers. However, these shorter wavelengths have disadvantages, especially in…