scholarly journals Two-Party secret key distribution via a modified quantum secret sharing protocol

2015 ◽  
Vol 23 (6) ◽  
pp. 7300 ◽  
Author(s):  
W. P. Grice ◽  
P. G. Evans ◽  
B. Lawrie ◽  
M. Legré ◽  
P. Lougovski ◽  
...  
Keyword(s):  
Secret Sharing ◽  
Quantum Secret Sharing ◽  
Key Distribution ◽  
Secret Key

Cryptanalysis and improvement of the novel semi-quantum secret sharing scheme based on Bell states

2018 ◽  
Vol 32 (25) ◽  
pp. 1850294 ◽  
Author(s):  
Bingren Chen ◽  
Wei Yang ◽  
Liusheng Huang
Keyword(s):  
Secret Sharing ◽  
Quantum Key Distribution ◽  
Quantum Secret Sharing ◽  
Key Distribution ◽  
Bell States ◽  
Secret Sharing Scheme ◽  
The Novel ◽  
Improvement Strategy ◽  
Sharing Scheme ◽  
Quantum Secret Sharing Scheme

A recent paper proposed a semi-quantum secret sharing (SQSS) scheme based on Bell states [A. Yin et al., Mod. Phys. Lett. B. https://doi.org/10.1142/S0217984917501500 ]. This protocol was presumed that only the sender has the quantum power and all participants perform classical operations. However, we find this protocol is not that secure as it is expected. We can utilize the intercept-resend method to attack this scheme. Then, we give an improvement strategy based on semi-quantum key distribution, which ensures that the new scheme resists the attack we have proposed.

Quantum communication scheme with freely selectable users

2021 ◽  
pp. 2150156
Author(s):  
Tianqi Dou ◽  
Hongwei Liu ◽  
Jipeng Wang ◽  
Zhenhua Li ◽  
Wenxiu Qu ◽  
...  
Keyword(s):  
Quantum Key Distribution ◽  
Quantum Communication ◽  
Information Science ◽  
Quantum Secret Sharing ◽  
Key Distribution ◽  
Communication Process ◽  
Secret Key ◽  
Quantum Information Science ◽  
Transmission Distance ◽  
Communication Scheme

Quantum communication plays an important role in quantum information science due to its unconditional security. In practical implementations, the users of each communication vary with the transmitted information, and hence not all users are required to participate in each communication round. Therefore, improving the flexibility and efficiency of the actual communication process is highly demanded. Here, we propose a theoretical quantum communication scheme that realizes secret key distribution for both the two-party quantum key distribution (QKD) and multi-party quantum secret sharing (QSS) modes. The sender, Alice, can freely select one or more users to share keys among all users, and nonactive users will not participate in the process of secret key sharing. Numerical simulations show the superiority of the proposed scheme in transmission distance and secure key rate. Consequently, the proposed scheme is valuable for secure quantum communication network scenarios.

Participant attack and improving dynamic quantum secret sharing using d-dimensional GHZ state

2019 ◽  
Vol 35 (06) ◽  
pp. 2050024
Author(s):  
Chun-Wei Yang ◽  
Chia-Wei Tsai
Keyword(s):  
Secret Sharing ◽  
Quantum Secret Sharing ◽  
Ghz State ◽  
Secret Key ◽  
Security Issue ◽  
Security Issues ◽  
Participant Attack ◽  
Sharing Function

In 2017, Qin and Dai [Quantum Inf. Process. 16, 64 (2017). https://doi.org/10.1007/s11128-017-1525-y ], proposed a dynamic quantum secret sharing (DQSS) scheme based on the d-dimensional state. However, as shown in this study, a malicious participant can reveal the secret key of other participants without being detected. Furthermore, this study identifies a security issue in Qin and Dai’s DQSS protocol pertaining to the honesty of a revoked participant. Without considering these security issues, the DQSS protocol could fail at providing secret-sharing function. Therefore, two improvements are proposed to circumvent these problems.

Quantum secret sharing protocol based on four-dimensional three-particle entangled states

2016 ◽  
Vol 30 (02) ◽  
pp. 1550267 ◽  
Author(s):  
Yi Xiang ◽  
Zhi Wen Mo
Keyword(s):  
Hilbert Space ◽  
Secret Sharing ◽  
Single Particle ◽  
High Efficiency ◽  
Quantum Secret Sharing ◽  
Entangled States ◽  
Secret Key ◽  
Particle Measurements ◽  
Eavesdropping Attack ◽  
Dimensional Hilbert Space

In this paper, we proposed a three-party quantum secret sharing (QSS) scheme using four-dimensional three-particle entangled states. In this QSS scheme, each agent can obtain a shadow of the secret key by performing single-particle measurements. Compared with the existing QSS protocol, this scheme has high efficiency and can resist the eavesdropping attack and entangle-measuring attack, which using three-particle entangled states are based on four-dimensional Hilbert space.

Multiparty semiquantum secret sharing based on rearranging orders of qubits

2016 ◽  
Vol 30 (10) ◽  
pp. 1650130 ◽  
Author(s):  
Gan Gao ◽  
Yue Wang ◽  
Dong Wang
Keyword(s):  
Secret Sharing ◽  
Key Distribution ◽  
Bell States ◽  
Secret Key ◽  
Computational Basis

Based on the assumption of a perfect qubit, Boyer et al. proposed a novel semiquantum key distribution protocol [Phys. Rev. Lett. 99 (2007) 140501], in which quantum Alice shares a secret key with classical Bob. In this paper, we use Bell states to propose a multiparty semiquantum secret sharing (MSQSS) protocol, in which only the boss is quantum and all agents are classical. Classical agents are restricted to performing measurements in a computational basis and rearranging orders of qubits. Unless all classical agents collaborate, no subset of them can obtain the secret of the quantum boss. Also, we show that this proposed protocol is secure against eavesdropping.

Scalable Quantum Secret Sharing Extended from Quantum Key Distribution

2007 ◽  
Vol 24 (5) ◽  
pp. 1147-1150 ◽  
Author(s):  
Liu Wei-Tao ◽  
Liang Lin-Mei ◽  
Li Cheng-Zu ◽  
Yuan Jian-Min
Keyword(s):  
Secret Sharing ◽  
Quantum Key Distribution ◽  
Quantum Secret Sharing ◽  
Key Distribution

REEXAMINING THE SECURITY OF THE RECONSTRUCTION PHASE OF THE HILLERY-BUZĚK-BERTHIAUME QUANTUM SECRET-SHARING PROTOCOL

2009 ◽  
Vol 07 (07) ◽  
pp. 1357-1362
Author(s):  
YU-GUANG YANG ◽  
WEI-FENG CAO ◽  
QIAO-YAN WEN
Keyword(s):  
Quantum Information ◽  
Secret Sharing ◽  
Quantum Secret Sharing ◽  
Secret Key ◽  
Participant Attack ◽  
Secret Reconstruction ◽  
Almost All

The participant attack is the most serious threat for quantum secret-sharing protocols. However, it is only during the transmission of quantum information carriers that attention is paid to this kind of attack in the existing quantum secret-sharing protocols. The security considerations of the secret reconstruction phase of quantum secret-sharing protocols against this kind of attack are neglected. We demonstrate our viewpoint by taking the scheme of Hillery, Buzěk, and Berthiaume (HBB) [Phys. Rev. A59 (1999) 18–29] as an example. By telling a lie in the reconstruction phase, a dishonest participant can easily attain the entire secret key instead of eavesdropping during the transmission awkwardly, whereas the honest one cannot judge whether the dishonest one tells the truth and the obtained secret random key is identical to what the secret distributor owns because of lack of verification mechanism in the HBB protocol. It is not difficult to find that almost all the quantum secret-sharing protocols have such disadvantages. Our viewpoint presented may be useful for the design of other similar protocols.

Quantum secret sharing with identity authentication based on Bell states

2017 ◽  
Vol 15 (04) ◽  
pp. 1750023 ◽  
Author(s):  
Hussein Abulkasim ◽  
Safwat Hamad ◽  
Amal Khalifa ◽  
Khalid El Bahnasy
Keyword(s):  
Secret Sharing ◽  
Quantum Secret Sharing ◽  
Identity Authentication ◽  
Impersonation Attack ◽  
Secret Key ◽  
Secret Data ◽  
Man In The Middle ◽  
Efficiency Performance ◽  
Shared Key ◽  
Number Of Parties

Quantum secret sharing techniques allow two parties or more to securely share a key, while the same number of parties or less can efficiently deduce the secret key. In this paper, we propose an authenticated quantum secret sharing protocol, where a quantum dialogue protocol is adopted to authenticate the identity of the parties. The participants simultaneously authenticate the identity of each other based on parts of a prior shared key. Moreover, the whole prior shared key can be reused for deducing the secret data. Although the proposed scheme does not significantly improve the efficiency performance, it is more secure compared to some existing quantum secret sharing scheme due to the identity authentication process. In addition, the proposed scheme can stand against participant attack, man-in-the-middle attack, impersonation attack, Trojan-horse attack as well as information leaks.

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