17 research outputs found
Chip-Based Measurement-Device-Independent Quantum Key Distribution
Modern communication strives towards provably secure systems which can be
widely deployed. Quantum key distribution provides a methodology to verify the
integrity and security of a key exchange based on physical laws. However,
physical systems often fall short of theoretical models, meaning they can be
compromised through uncharacterized side-channels. The complexity of detection
means that the measurement system is a vulnerable target for an adversary.
Here, we present secure key exchange up to 200 km while removing all
side-channels from the measurement system. We use mass-manufacturable,
monolithically integrated transmitters that represent an accessible,
quantum-ready communication platform. This work demonstrates a network topology
that allows secure equipment sharing which is accessible with a cost-effective
transmitter, significantly reducing the barrier for widespread uptake of
quantum-secured communication
Experimental Demonstration of DDoS Mitigation over a Quantum Key Distribution (QKD) Network Using Software Defined Networking (SDN)
We experimentally demonstrate, for the first time, DDoS mitigation of
QKD-based networks utilizing a software defined network application. Successful
quantum-secured link allocation is achieved after a DDoS attack based on
real-time monitoring of quantum parametersComment: Accepted for presentation in OFC 2018 Conference. M2A.
Absorption spectroscopy at the ultimate quantum limit from single-photon states
Underlying data for correlated photon experiments used to demonstrate sub shot noise absorption spectroscopy measurement