Quantum Key Agreement Protocol Sample Contracts
A verifiable quantum key agreement protocol based on six-qubit cluster statesQuantum Key Agreement Protocol • February 9th, 2022
For the first case, the decoy particles {|0⟩, |1⟩, |+⟩, |−⟩} are randomly selected and inserted into the subsequences, and the sender will not announce the positions of the decoy particles and the corresponding measurement bases until the receiver receives the subsequences.
EasyChair PreprintQuantum Key Agreement Protocol • December 13th, 2023
Quantum Key Agreement Via Non-maximally Entangled Cluster StatesQuantum Key Agreement Protocol • September 4th, 2020
In this paper, we present a quantum key agreement (QKA) protocol with non-maximally entangled four-qubit cluster states. In our scheme, each participant carries out two unitary operations on the same photons of each cluster state according to its own encryption key. Then, all participants generate identical four-bit shared keys by positive operator-valued measurement (POVM). Since POVM is probabilistic, it is necessary to prepare a longer raw key, and we only select sub-keys in public locations of qubit sequences where all participants succeed in POVMs as the final negotiation key. The advantage of our protocol is that non-maximally entangled cluster states are firstly utilized as the carrier of quantum information in quantum key agreement protocol. It also ensures that the shared key is decided by all participants, not by someone alone. In addition, it is proved that our protocol can resist external attacks and participant attacks, which demonstrates a high security.
Multiparty quantum key agreement with singleQuantum Key Agreement Protocol • January 9th, 2015
EasyChair PreprintQuantum Key Agreement Protocol • November 29th, 2019
High-efficiency three-party quantum key agreement protocol with quantum dense coding and Bell statesQuantum Key Agreement Protocol • June 4th, 2021