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Reply to "Avoiding the Detector Blinding Attack on Quantum Cryptography"
Lars Lydersen, Carlos Wiechers, Christoffer Wittmann +3
This is a reply to the comment by Yuan et al. [arXiv:1009.6130v1] on our publication [arXiv:1008.4593].
After-gate attack on a quantum cryptosystem
Carlos Wiechers, Lars Lydersen, Christoffer Wittmann +5
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 ar…
Thermal blinding of gated detectors in quantum cryptography
Lars Lydersen, Carlos Wiechers, Christoffer Wittmann +3
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 using c…
Hacking commercial quantum cryptography systems by tailored bright illumination
Lars Lydersen, Carlos Wiechers, Christoffer Wittmann +3
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. So-called…