On the role of quantum communication and loss in attacks on quantum position verification (2022)
Shows that any QPV protocol that can be broken unentangled with quantum communication, but is secure against classical communication attacks, can be transformed into one that is secure against quantum communication attacks. Also notes that if the signal loss is high enough any…
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- 2026-10-10
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On the role of quantum communication and loss in attacks on quantum position verification (2022) arxiv.org
Proves a 3/4 upper bound on the success probability of unentangled attacks.
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Insecurity of position-based quantum cryptography protocols against entanglement attacks (2011) doi.org
Proves insecurity of QPV protocols that were previously claimed secure and studies general principle underlying entanglement attacks. Studies variations of QPV protocols based on Bell/GHZ states and shows that using eigenstates other than Pauli $X$, $Y$, $Z$ leads to protocols…
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Single-qubit loss-tolerant quantum position verification protocol secure against entangled attackers (2023) doi.org
Tightly characterises the secure region of the protocol depending on the loss and error rates.
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Making existing quantum position verification protocols secure against arbitrary transmission loss (2023) arxiv.org
Introduces an extra commitment step into QPV and shows that for a class of protocols, involving $f$-BB84 QPV, this makes the transmission loss irrelevant for security. Argues $f$-BB84 is a practical QPV protocol.
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Location-dependent communications using quantum entanglement (2010) doi.org
Introduces QPV in the academic literature, but incorrectly claims unconditional security. Studies QPV based on Bell states.
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Position-based quantum cryptography: Impossibility and constructions (2011) doi.org
Shows security against unentangled attacks.
Position-Based Quantum Cryptography › Towards Understanding NLQC: “Shows that any QPV protocol that can be broken unentangled with quantum communication, but is secure against classical communication attacks, can be transformed into one that is secure against quantum communication attacks. Also notes that if the signal loss is high enough any…”