Quantum key distribution (QKD) enables two parties to establish a shared secret key over an insecure channel with security guaranteed by the laws of quantum mechanics. Protocols such as BB84 and its ...

Quantum key agreement (QKA) protocols enable two or more remote parties to establish a shared secret key by exploiting fundamental quantum properties. Unlike quantum key distribution, in which one ...

MicroCloud Hologram Inc. has announced a groundbreaking proposal for a high-dimensional quantum key distribution (QKD) protocol that utilizes quantum Fourier transform and quantum-controlled NOT gate ...

A growing number of quantum engineers worldwide have been trying to realize large-scale quantum networks, which consist of ...

Continuous-variable quantum cryptography has emerged as a significant branch of quantum cryptography, with continuous-variable quantum key distribution (CVQKD) at its core. However, compared to ...

A new method to distribute cryptographic keys using terahertz waves could help enable secure communication in the ...

To keep communications secure in a post-quantum world, cryptographers are digging down into the concept of cause and effect.

The German consortium QuINSiDa has achieved a major step toward mobile quantum-secure communication. They demonstrated a ...

Quantum networking is an underappreciated but potentially consequential dimension of U.S.-China quantum competition.

Russian scientists have developed a software and hardware complex for secure data transmission in 4G/5G mobile networks based ...