Cryptanalysis and Improvement in Multi-Party Quantum Key Distribution Protocol with New Bell States Encoding Mode

2021 ◽  
Author(s):  
Chia-Wei Tsai ◽  
Jason Lin ◽  
Lung Chiu ◽  
Chun-Wei Yang
Keyword(s):  
Quantum Key Distribution ◽  
Key Distribution ◽  
Bell States ◽  
Quantum Key Distribution Protocol

scholarly journals Lightweight mediated semi-quantum key distribution protocol with a dishonest third party based on Bell states

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Chia-Wei Tsai ◽  
Chun-Wei Yang
Keyword(s):  
Quantum Key Distribution ◽  
Key Distribution ◽  
Trojan Horse ◽  
Bell States ◽  
Third Party ◽  
Research Issue ◽  
Important Research ◽  
Secret Keys ◽  
Quantum Key Distribution Protocol

AbstractThe mediated semi-quantum key distribution (MSQKD) protocol is an important research issue that lets two classical participants share secret keys securely between each other with the help of a third party (TP). However, in the existing MSQKD protocols, there are two improvable issues, namely (1) the classical participants must be equipped with expensive detectors to avoid Trojan horse attacks and (2) the trustworthiness level of TP must be honest. To the best of our knowledge, none of the existing MSQKD protocols can resolve both these issues. Therefore, this study takes Bell states as the quantum resource to propose a MSQKD protocol, in which the classical participants do not need a Trojan horse detector and the TP is dishonest. Furthermore, the proposed protocol is shown to be secure against well-known attacks and the classical participants only need two quantum capabilities. Therefore, in comparison to the existing MSQKD protocols, the proposed protocol is better practical.

Semi-quantum key distribution protocol based on the hyperentanglement Bell state of polarization-spatial mode

2020 ◽  
Vol 34 (31) ◽  
pp. 2050353
Author(s):  
Ling Xu
Keyword(s):  
Quantum Key Distribution ◽  
High Capacity ◽  
Bell State ◽  
Key Distribution ◽  
Degree Of Freedom ◽  
Bell States ◽  
Spatial Mode ◽  
Security Systems ◽  
State Of Polarization ◽  
Quantum Key Distribution Protocol

The semi-quantum key distribution protocol based on the hyperentanglement Bell state of polarization-spatial mode is presented in this paper. This protocol is utilized to share the session keys and construct key hierarchy of security systems in high capacity between the legitimate users securely. Different from the previous protocols, two quantum non-demolition detectors are constructed with cross-Kerr nonlinearities and different phase shifts for distinguishing the Bell states in spatial mode degree of freedom. Meanwhile, this protocol can improve the capacity and efficiency when the legitimate users share the session keys. And the technology of the hyperentanglement purification and hyperentanglement concentration can enhance the robustness and stability of this protocol. At last, this protocol proposed in this paper can withstand several kinds of attacks.

Authenticated semi-quantum key distribution protocol using Bell states

2014 ◽  
Vol 13 (6) ◽  
pp. 1457-1465 ◽  
Author(s):  
Kun-Fei Yu ◽  
Chun-Wei Yang ◽  
Ci-Hong Liao ◽  
Tzonelih Hwang
Keyword(s):  
Quantum Key Distribution ◽  
Key Distribution ◽  
Bell States ◽  
Quantum Key Distribution Protocol

scholarly journals Experimental verification of fault tolerant quantum key distribution protocol

2005 ◽  
Vol 13 (23) ◽  
pp. 9415 ◽  
Author(s):  
Yun-kun Jiang ◽  
Xiang-Bin Wang ◽  
Bao-Sen Shi ◽  
Akihisa Tomita
Keyword(s):  
Experimental Verification ◽  
Quantum Key Distribution ◽  
Fault Tolerant ◽  
Key Distribution ◽  
Quantum Key Distribution Protocol
Sign in / Sign up

Export Citation Format

Share Document