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Attacks exploiting deviation of mean photon number in quantum key distribution and coin tossing
Shihan Sajeed, Igor Radchenko, Sarah Kaiser +5
The security of quantum communication using a weak coherent source requires an accurate knowledge of the source's mean photon number. Finite calibration precision or an active mani…
Experimental quantum key distribution with source flaws
Feihu Xu, Kejin Wei, Shihan Sajeed +6
Decoy-state quantum key distribution (QKD) is a standard technique in current quantum cryptographic implementations. Unfortunately, existing experiments have two important drawback…
Risk analysis of Trojan-horse attacks on practical quantum key distribution systems
Nitin Jain, Birgit Stiller, Imran Khan +3
An eavesdropper Eve may probe a quantum key distribution (QKD) system by sending a bright pulse from the quantum channel into the system and analyzing the back-reflected pulses. Su…
Trojan-horse attacks threaten the security of practical quantum cryptography
Nitin Jain, Elena Anisimova, Imran Khan +3
A quantum key distribution system may be probed by an eavesdropper Eve by sending in bright light from the quantum channel and analyzing the back-reflections. We propose and experi…