Authenticated semi-quantum key distributions without classical channel

• DOI: 10.1007/s11128-016-1307-y
• Publication Date: 2016-04-18T07:25:34Z
• Authors: Chuan-Ming Li; Kun-Fei Yu; Shih-Hung Kao; Tzonelih Hwang
• Keywords: 0103 physical sciences; 01 natural sciences

Yu et al. have proposed the first authenticated semi-quantum key distribution (ASQKD) without using an authenticated classical channel. This study further proposes two advanced ASQKD protocols. Compared to Yu et al.'s schemes, the proposed protocols ensure better qubit efficiency and require fewer pre-shared keys. Security analyses show that the proposed ASQKD protocols also can be secure against several well-known outside eavesdropper's attacks.