A Protocol of Quantum Authentication

Dengguo Feng, Pla Information

Classical and quantum message authentication protocols were studied. A classical message authenticated encryption protocol based on quantum one-way functions was proposed. It was demonstrated that the proposed protocol was not only a secure encryption scheme, but also a secure authentication scheme. Using the authenticated encryption protocol as a sub-protocol, a quantum message authentication scheme was addressed. Compared with the scheme addressed by BARNUM et al, this protocol economizes the keys shared between two communication parties. The security of the quantum message authentication scheme is also shown.

Masahiro Hotta, Masanao Ozawa, Alexander I. Lvovsky

Behzad Lari, M. Hossientabar, HASSAN HASSANABADI

Elloá B. Guedes, Francisco de Assis

In order to perform Quantum Cryptography procedures it is often essencial to ensure that the parties of the communication are authentic. Such task is accomplished by quantum authentication protocols which are distributed algorithms based on the intrinsic properties of Quantum Mechanics. The choice of an authentication protocol must consider that quantum states are very delicate and that the channel is subject to eavesdropping. However, even in face of the various existing definitions of quantum authentication protocols in the literature, little is known about them in this perspective, and this lack of knowledge may unfavor comparisons and wise choices. In the attempt to overcome this limitation, in the present work we aim at showing an approach to evaluate quantum authentication protocols based on the determination of their quantum communication complexity. Based on our investigation, no similar methods to analyze quantum authentication protocols were found in the literature. Pursuing this further, our approach has advantages that need to be highlighted: it characterizes a systematic procedure to evaluate quantum authentication protocols; its evaluation is intuitive, based only on the protocol execution; the resulting measure is a concise notation of what resources a quantum authentication protocol demands and how many communications are performed; it allows comparisons between protocols; it makes possible to analyze the communication effort when an eavesdropping occurs; and, lastly, it is likely to be applied in almost any quantum authentication protocol. To illustrate the proposed approach, we also bring results about its application in ten existing quantum authentication protocols (data origin authentication and identity authentication). Such evaluations increase the knowledge about the existing protocols, presenting its advantages, limitations and contrasts.

Tristan Bernhard Horst Tentrup, Ravitej Uppu, Tom A. W. Wolterink +12 more

Atsushi WASEDA

Multiparty Simultaneous Quantum Identity Authentication (MSQIA) is a form of quantum authentication protocol in which a verifier can simultaneously authenticate all users. Yang et al. previously proposed the MSQIA protocol, but in that protocol the user's key is revealed by the fake signal attack. This paper proposes a new MSQIA protocol that is secure against fake signal attacks. It also demonstrates that this scheme is secure against several well-known attacks on MSQIA. This protocol can be efficiently used for MSQIA in a network and is feasible with current technology, like the protocol of Yang et al.