@Article{cmc.2020.09873,
AUTHOR = {Lili Yan, Shibin Zhang, Yan Chang, Zhibin Sun, Zhiwei Sheng},
TITLE = {Quantum Secure Direct Communication Protocol with Mutual  Authentication Based on Single Photons and Bell States},
JOURNAL = {Computers, Materials \& Continua},
VOLUME = {63},
YEAR = {2020},
NUMBER = {3},
PAGES = {1297--1307},
URL = {http://www.techscience.com/cmc/v63n3/38876},
ISSN = {1546-2226},
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
                  <img src="http://www.techscience.com/ueditor/files/cmc-gongshi.png">, and 
composes an ordered secret message sequence. To insure the security of communication,
Alice also prepares the decoy photons and inserts them into secret message sequence on 
the basis of the values of IDA and IDB. By the secret identity IDA and IDB, both sides of the 
communication can check eavesdropping and identify each other. The proposed protocol 
not only completes secure direct communication, but also realizes the mutual 
authentication. The security analysis of the proposed protocol is presented in the paper. 
The analysis results show that this protocol is secure against some common attacks, and 
no secret message leaks even if the messages are broken. Compared with the two-way
QSDC protocols, the presented protocol is a one-way quantum communication protocol
which has the immunity to Trojan horse attack. Furthermore, our proposed protocol can be 
realized without quantum memory.},
DOI = {10.32604/cmc.2020.09873}
}