Measure-resend authenticated semi-quantum key distribution with single photons.

This paper proposes a new measure-resend ASQKD protocol. The proposed ASQKD protocol uses only single photons, needs fewer pre-shared keys and even provides better qubit efficiency than the state-of-the-art ASQKD protocols. The security proof shows the robustness of the proposed protocol under the collective attack. [ABSTRACT FROM AUTHOR]