Improved Semi-Quantum Direct Communication Protocol
Subject Areas : electrical and computer engineeringZ. rashidi 1 , M. hooshmand 2 *
1 -
2 - دانشگاه بین المللی امام رضا(ع) مشهد
Keywords: Quantum cryptography, semi-quantum cryptography, semi-quantum secure communication, controller,
Abstract :
Unlike classical cryptography, where security is based on computational complexity, quantum cryptography has unconditional security, which is based on physical constraints. So far, the semi-quantum version of many of the problems of secure quantum communication protocols has been proposed. In this study, we examined semi-quantum protocols that allow users to access a secret message directly without distributing the key. An important factor used to analyze the performance of secure quantum direct communication protocols is efficiency. In this study, the proposed semi-quantum secure communication protocol against various quantum attacks has been investigated. In the proposed scheme for decoding the confidential message by the receiver, a sequence of single photons is required, which is first generated by the controller. The proposed protocol has a yield of 50%, which is higher than the previous protocol, which has a yield of 66.6%.
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