A Novel Quantum Coin Tossing Protocol Based on Quantum Public-Key Cryptosystem

2011 ◽  
Author(s):  
Guanghui Liu ◽  
Dong Cao
Keyword(s):  
Public Key ◽  
Public Key Cryptosystem ◽  
Coin Tossing ◽  
Quantum Coin ◽  
Quantum Public Key ◽  
Quantum Public Key Cryptosystem

scholarly journals Quantum Election Protocol Based on Quantum Public Key Cryptosystem

2021 ◽  
Vol 2021 ◽  
pp. 1-15
Author(s):  
Wenhua Gao ◽  
Li Yang
Keyword(s):  
Digital Signature ◽  
Large Scale ◽  
Third Party ◽  
Public Key ◽  
General Construction ◽  
Public Key Cryptosystem ◽  
Public Key Encryption ◽  
Quantum Digital Signature ◽  
Quantum Public Key ◽  
Quantum Public Key Cryptosystem

There is no quantum election protocol that can fulfil the eight requirements of an electronic election protocol, i.e., completeness, robustness, privacy, legality, unreusability, fairness, verifiability, and receipt-freeness. To address this issue, we employ the general construction of quantum digital signature and quantum public key encryption, in conjunction with classic public key encryption, to develop and instantiate a general construction of quantum election protocol. The proposed protocol exhibits the following advantages: (i) no pre-shared key between any two participants is required, and no trusted third party or anonymous channels are required. The protocol is suitable for large-scale elections with numerous candidates and voters and accommodates the situation in which multiple voters vote simultaneously. (ii) It is the first protocol that dismantles the contradiction between verifiability and receipt-freeness in a quantum election protocol. It satisfies all eight requirements stated earlier under the physical assumptions that there exists a one-way untappable channel from the administrator to the voter and that there is no collusion between any of the three parties in the protocol. Compared with current election protocols with verifiability and receipt-freeness, this protocol relies upon fewer physical assumptions. (iii) This construction is flexible and can be instantiated into an election scheme having post-quantum security by applying cryptographic algorithms conveying post-quantum security. Moreover, utilizing quantum digital signature and public key encryption yields a good result: the transmitted ballots are in quantum states, so owing to the no-cloning theorem, ballot privacy is less likely to be compromised, even if private keys of the signature and public key encryption are leaked after the election. However, in existing election protocols employing classic digital signatures and public key encryption, ballot privacy can be easily violated if attackers obtain private keys. Thus, our construction enhances privacy.

Quantum Public Key Cryptosystem Based on Bell States

2017 ◽  
Vol 56 (11) ◽  
pp. 3431-3440 ◽  
Author(s):  
WanQing Wu ◽  
QingYu Cai ◽  
HuanGuo Zhang ◽  
XiaoYan Liang
Keyword(s):  
Bell States ◽  
Public Key ◽  
Public Key Cryptosystem ◽  
Quantum Public Key ◽  
Quantum Public Key Cryptosystem

Quantum Public-Key Cryptosystem

2011 ◽  
Vol 51 (3) ◽  
pp. 912-924 ◽  
Author(s):  
Ming-Xing Luo ◽  
Xiu-Bo Chen ◽  
Deng Yun ◽  
Yi-Xian Yang
Keyword(s):  
Public Key ◽  
Public Key Cryptosystem ◽  
Quantum Public Key ◽  
Quantum Public Key Cryptosystem

Bit-Oriented Quantum Public-Key Cryptosystem Based on Bell States

2018 ◽  
Vol 57 (6) ◽  
pp. 1705-1715
Author(s):  
WanQing Wu ◽  
QingYu Cai ◽  
HuanGuo Zhang ◽  
XiaoYan Liang
Keyword(s):  
Bell States ◽  
Public Key ◽  
Public Key Cryptosystem ◽  
Quantum Public Key ◽  
Quantum Public Key Cryptosystem
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