Two-layer quantum key distribution
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Recently a new quantum key distribution protocol using coherent and thermal states was proposed. In this work, this kind of two-layer QKD protocol is formalized and its security against the most common attacks, including external control and Trojan horse attacks, is discussed.
KeywordsQuantum key distribution Security analysis Coherent and thermal states
This work was supported by the Brazilian agencies CNPq via Grant No. 303514/2008-6. Also, this work was performed as part of the Brazilian National Institute of Science and Technology for Quantum Information.
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