Trusted, Third-Party Authenticated, Quantum Key Distribution

Naya Nagy, Selim G. Akl

Yoshito Kanamori, Bogdan Hoanca, Seong-Moo Yoo

In this paper, a novel three-party quantum authenticated key distribution with a partially trusted third party protocol is proposed. Unlike most classical cryptography, the security of the protocol does not rely on the amount of computations required to find the encryption key, but on physical properties of the transmission medium (i.e., quantum mechanical properties). The session key shared between participants is concealed from the trusted third party while the participants trust the third party regarding the authentication part. Thus, the proposed system will be preferable for network systems in/between institutions, which deal with highly sensitive information (e.g., military bases, research facilities, hospitals).

Chenhui Jin, Zhiyong Li, Su-hua LIAO

A deniable authentication protocol enables a receiver to identify the true source of given message, but not to prove the identity of the sender to a third party.This property is very useful for providing secure negotiation over the Internet.Recently, Shi et al. proposed a quantum deniable authentication protocol based on the property of unitary transformation and quantum one-way function.A trusted center (TC) is introduced in their protocol, and a much amount of quantum resources, such as entanglement, quantum memory and quantum one-way function, are required.In this paper, a deniable authentication protocol without a trust center is proposed based on the quantum key distribution (QKD).In the presented protocol, the QKD is used firstly to share a secret key between the sender and the receiver.Then, the shared key is used to identify the true source of sender's message by the receiver.Finally, the simulation based proof shows that the receiver cannot prove the identity of the sender to any third party.

R. Lalu Naik

Hwayean Lee, Jongin Lim, Hyung-Jin Yang

We propose a quantum key distribution protocol with quantum based user authentication. Our protocol is the first one in which users can authenticate each other without previously shared secret and then securely distribute a key where the key may not be exposed to even a trusted third party. The security of our protocol is guaranteed by the properties of the entanglement.

Chang-Yue Zhang, Zhu‐Jun Zheng