Abstract

Quantum Secure Direct Communication (QSDC) is a distinctive protocol of quantum communication. It communicates confidential message straight through a quantum channel without a requirement of secret key and cipher-text. It is not solely useful in preventing eavesdropping throughout transmission, but additionally removes the security flaw related with storing and managing the key. Therefore, this protocol of secure communication is different from its typical equivalents and other quantum protocols. In this article, we will bring out the facts that how QSDC is different and better than other protocols of Quantum Communication. The transient details of all the protocols of Quantum communication are studied rigorously and compared with QSDC to demonstrate how QSDC is capable of overcoming the loopholes/shortcomings of alternative protocols. In this paper, protocols of QSDC to mitigate the possible threats available in practical QSDC are discussed and one of the protocol Measurement Device Independent QSDC is demonstrated along with the efficacy of results verified using quantum simulator and quantum machine. The results demonstrate its potential over other protocols of quantum communication and contribution towards empowering secure communication. With the benefits of QSDC over other protocols, it helps as mitigating technique for the possible threats available in other protocols of Quantum communication.

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