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EPR quantum key distribution protocols with potential 100% qubit efficiency

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2 Author(s)
Hwang, T. ; Dept. of Comput. Sci. & Inf. Eng., Nat. Cheng Kung Univ., Tainan ; Lee, K.-C.

Public discussion is a useful way for quantum key distribution protocols to reveal the presence of eavesdroppers. However, to ensure better security, nearly 50% of the transmitted qubits are spent in public discussions. Consequently, the original EPR quantum key distribution protocol provides only 25% qubit efficiency and Deng et al.'s scheme delivers only 50% qubit efficiency. By bringing classical cryptographic techniques into the quantum arena, this work proposes EPR quantum key distribution protocols with a potential of 100% qubit efficiency

Published in:

Information Security, IET  (Volume:1 ,  Issue: 1 )

Date of Publication:

March 2007

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