Practical implementations of quantum key distribution (QKD) have been shown to be subject
to various detector side-channel attacks that compromise the promised unconditional …

We propose and experimentally demonstrate a scheme to render the detection apparatus of
a quantum key distribution system immune to the main classes of hacking attacks in which …

In free-space quantum key distribution (QKD), the sensitivity of the receiver's detector
channels may depend differently on the spatial mode of incoming photons. Consequently …

Quantum key distribution (QKD) protocols with threshold detectors are driving high-
performance QKD demonstrations. The corresponding security proofs usually assume that …

Quantum key distribution (QKD) theoretically offers unconditional security. Unfortunately, the
gap between theory and practice threatens side-channel attacks on practical QKD systems …

Quantum key distribution (QKD) is a cryptographic technique that enables secure private key
exchange between geographically distant parties over an insecure channel, protecting …

We propose an efficient strategy to attack a continuous-variable (CV) quantum key
distribution (QKD) system, which we call homodyne detector blinding. This attack strategy …

To protect practical quantum key distribution (QKD) against photon-number-splitting attacks,
one could measure the coherence of the received signals. One prominent example that …

The security of quantum key distribution (QKD) can easily be obscured if the eavesdropper
can utilize technical imperfections in the actual implementation. Here, we describe and …

Quantum key distribution (QKD) can, in principle, provide unconditional security based on
the fundamental laws of physics. Unfortunately, a practical QKD system may contain …