Table 1 Examples of side channel attacks on one way BB84 QKD.

From: Quantum key distribution with hacking countermeasures and long term field trial

Attack name

Target

Countermeasures

Photon number splitting65

Source

Decoy states56, 57, SARG0466

Trojan horse52, 67

Source/Receiver

Passive optical components20, 52

Phase randomisation68

Source

Active randomisation69, Characterisation47

Blinding22

Detector

MDI-QKD35, 36, Optical monitoring28, Detector monitoring70

Time shift24, 29, 71

Detector

MDI-QKD35, 36, Detector symmetrisation72

Dead-time73

Detector

MDI-QKD35, 36, Simultaneous dead-time74

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