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 ...

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 ...

But a newer category is beginning to mature from theoretical research into deployable infrastructure.​ Unlike QKD, which ...

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

A new technical paper titled “A Practical Implementation of Quantum-Derived Keys for Secure Vehicle-to-Infrastructure Communications” was published by University of Warwick. “We provide a practical ...

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

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

The experimental layout of the sender Alice and the receiver Bob. Alice’s setup contains the excitation and collection setup of the single photon source, and a Sagnac-like polarization modulator for ...