Lili Yan1, *, Shibin Zhang1, Yan Chang1, Zhibin Sun2, Zhiwei Sheng1
CMC-Computers, Materials & Continua, Vol.63, No.3, pp. 1297-1307, 2020, DOI:10.32604/cmc.2020.09873
Abstract Quantum secure direct communication (QSDC) can transmit secret messages
directly from one user to another without first establishing a shared secret key, which is
different from quantum key distribution. In this paper, we propose a novel quantum secure
direct communication protocol based on signal photons and Bell states. Before the execution
of the proposed protocol, two participants Alice and Bob exchange their corresponding
identity IDA and IDB through quantum key distribution and keep them secret, respectively.
Then the message sender, Alice, encodes each secret message bit into two single photons
(| 01〉or|10〉) or a Bell state
, and
composes… More >
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