Thermal blinding of gated detectors in quantum cryptography
It has previously been shown that the gated detectors of two commercially available
quantum key distribution (QKD) systems are blindable and controllable by an eavesdropper …
quantum key distribution (QKD) systems are blindable and controllable by an eavesdropper …
Controlling an actively-quenched single photon detector with bright light
S Sauge, L Lydersen, A Anisimov, J Skaar… - Optics express, 2011 - opg.optica.org
We control using bright light an actively-quenched avalanche single-photon detector.
Actively-quenched detectors are commonly used for quantum key distribution (QKD) in the …
Actively-quenched detectors are commonly used for quantum key distribution (QKD) in the …
Hacking commercial quantum cryptography systems by tailored bright illumination
The peculiar properties of quantum mechanics allow two remote parties to communicate a
private, secret key, which is protected from eavesdropping by the laws of physics 1, 2, 3, 4 …
private, secret key, which is protected from eavesdropping by the laws of physics 1, 2, 3, 4 …
After-gate attack on a quantum cryptosystem
We present a method to control the detection events in quantum key distribution systems that
use gated single-photon detectors. We employ bright pulses as faked states, timed to arrive …
use gated single-photon detectors. We employ bright pulses as faked states, timed to arrive …
Laser damage helps the eavesdropper in quantum cryptography
AN Bugge, S Sauge, AMM Ghazali, J Skaar… - Physical review …, 2014 - APS
We propose a class of attacks on quantum key distribution (QKD) systems where an
eavesdropper actively engineers new loopholes by using damaging laser illumination to …
eavesdropper actively engineers new loopholes by using damaging laser illumination to …
Eavesdropping and countermeasures for backflash side channel in quantum cryptography
PVP Pinheiro, P Chaiwongkhot, S Sajeed, RT Horn… - Optics express, 2018 - opg.optica.org
Quantum key distribution (QKD) promises information theoretic secure key as long as the
device performs as assumed in the theoretical model. One of the assumptions is an absence …
device performs as assumed in the theoretical model. One of the assumptions is an absence …
Real-time monitoring of single-photon detectors against eavesdropping in quantum key distribution systems
By employing real-time monitoring of single-photon avalanche photodiodes we demonstrate
how two types of practical eavesdropping strategies, the after-gate and time-shift attacks …
how two types of practical eavesdropping strategies, the after-gate and time-shift attacks …
Room temperature single-photon detectors for high bit rate quantum key distribution
We report room temperature operation of telecom wavelength single-photon detectors for
high bit rate quantum key distribution (QKD). Room temperature operation is achieved using …
high bit rate quantum key distribution (QKD). Room temperature operation is achieved using …
Gigahertz decoy quantum key distribution with 1 Mbit/s secure key rate
We report the first gigahertz clocked decoy-protocol quantum key distribution (QKD). Record
key rates have been achieved thanks to the use of self-differencing InGaAs avalanche …
key rates have been achieved thanks to the use of self-differencing InGaAs avalanche …
Hacking single-photon avalanche detectors in quantum key distribution via pulse illumination
Quantum key distribution (QKD) has been proved to be information-theoretically secure in
theory. Unfortunately, the imperfect devices in practice compromise its security. Thus, to …
theory. Unfortunately, the imperfect devices in practice compromise its security. Thus, to …