Personal financial hygiene for junior doctors

Hayden, Colleen

doi:10.1136/bmj.314.7088.2

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2011

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“…Note, however, that our approach merely relies on the existence of entropic uncertainty relations for multiple encodings, and our protocols and proofs are completely analogous if we were to use any other encodings for which strong uncertainty relations are known to exist. For example, it is conceivable that uncertainty relations for multiple encodings can be based on top of BB84 protocol encoded qubits [31], which would immediately lead to a protocol that is easy to implement experimentally.…”

Section: Discussionmentioning

confidence: 99%

Achieving the physical limits of the bounded-storage model

Mandayam

Wehner

2011

Phys. Rev. A

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Secure two-party cryptography is possible if the adversary's quantum storage device suffers imperfections. For example, security can be achieved if the adversary can store strictly less then half of the qubits transmitted during the protocol. This special case is known as the bounded-storage model, and it has long been an open question whether security can still be achieved if the adversary's storage were any larger. Here, we answer this question positively and demonstrate a two-party protocol which is secure as long as the adversary cannot store even a small fraction of the transmitted pulses. We also show that security can be extended to a larger class of noisy quantum memories.

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Section: Discussionmentioning

confidence: 99%