2 research outputs found
Design of Quantum Key Agreement Protocols with Strong Fairness Property
This study distinguishes the weak fairness property from the strong fairness
property which is necessary in the quantum key agreement (QKA) and shows that
most of the existing QKAs cannot achieve the strong fairness property with a
key manipulation problem.To solve this problem, a model which describes the way
to design a QKA with the strong fairness property is proposed. Based on the
model, an example QKA is presented. Security analyses show that the proposed
QKA is effective to resist not only outsider's eavesdropping attack but also
insider's key manipulation
Lightweight authenticated quantum key distribution protocols with key recycling
Quantum key distribution (QKD) has been developed for decades and several
different QKD protocols have been proposed. But two difficulties limit the
implementation of most QKD protocols. First, the involved participants are
required to have heavy quantum capabilities, such as quantum joint operation,
quantum register, and so on. Second, a hypothetical authenticated classical
channel is used in most of the existing QKD protocols and this assumed channel
does not exist in reality. To solve both the above limitations at the same
time, this study proposes three lightweight authenticated QKD protocols with
key recycling and shows these proposed protocols are robust under the
collective attack