부산대학교 도서관

Implicit authentication is an efficient tool focusing on achieving identity authentication during the transmitting ciphertext or signed message without extra authentication information. As quantum cryptography is emerging as a means to provide true randomness between quantum smart devices, it is imperative and crucial to solve the problem that computational cryptography could be cracked in the future. In this article, a novel quantum mutual implicit authentication key protocol (QMIAK) is proposed, which is based on single photon and key recycling for improving efficiency without entanglement. QMIAK guarantees the fairness of the trusted parties by mutually determining the base for encoding and decoding the authentication key. Besides, the fusion coding used in this scheme can effectively prevent Eve from intercepting and analyzing the authentication key, which greatly enhances the security of the proposed protocol. For increasing the utilization of the quantum bits, we adopt key recycling mechanism. In addition, the content of security proof and efficiency analysis also demonstrate our protocol is suitable for efficiently protecting authentication keys and feasible to implement. [ABSTRACT FROM AUTHOR]