scholarly journals Lottery and Auction on Quantum Blockchain

Entropy ◽  
2020 ◽  
Vol 22 (12) ◽  
pp. 1377
Author(s):  
Xin Sun ◽  
Piotr Kulicki ◽  
Mirek Sopek
Keyword(s):  
Unconditional Security ◽  
Quantum Bit ◽  
Bit Commitment ◽  
Main Technique

This paper proposes a protocol for lottery and a protocol for auction on quantum Blockchain. Our protocol of lottery satisfies randomness, unpredictability, unforgeability, verifiability, decentralization and unconditional security. Our protocol of auction satisfies bid privacy, posterior privacy, bids’ binding, decentralization and unconditional security. Except quantum Blockchain, the main technique involved in both protocols is quantum bit commitment.

scholarly journals Strong no-go theorem for Gaussian quantum bit commitment

2010 ◽  
Vol 81 (1) ◽  
Author(s):  
Loïck Magnin ◽  
Frédéric Magniez ◽  
Anthony Leverrier ◽  
Nicolas J. Cerf
Keyword(s):  
Quantum Bit ◽  
Bit Commitment

scholarly journals Measurement-Device-Independent Two-Party Cryptography with Error Estimation

Sensors ◽  
2020 ◽  
Vol 20 (21) ◽  
pp. 6351
Author(s):  
Zishuai Zhou ◽  
Qisheng Guang ◽  
Chaohui Gao ◽  
Dong Jiang ◽  
Lijun Chen
Keyword(s):  
Error Estimation ◽  
Bit Error Rate ◽  
Error Rate ◽  
Cryptographic Protocols ◽  
Measurement Device ◽  
Joint Measurement ◽  
Quantum Bit ◽  
Bit Commitment ◽  
Innovative Method ◽  
Limited Power

We present an innovative method for quantum two-party cryptography. Our protocol introduces joint measurement and error estimation to improve the security of two-party cryptographic protocols. Our protocol removes the assumption of the attacker’s limited power and catches the attacking actions through highly estimated bit error rate. Our protocol is formally proved to be secure against both eavesdroppers and dishonest communication parties. We also utilize our designed protocol to construct two specific two-party cryptographic applications: Quantum bit commitment and quantum password identification.

Quantum bit commitment in a channel with noise

JETP Letters ◽  
2001 ◽  
Vol 73 (2) ◽  
pp. 107-113
Author(s):  
S. N. Molotkov ◽  
S. S. Nazin
Keyword(s):  
Quantum Bit ◽  
Bit Commitment

scholarly journals Quantum bit commitment under Gaussian constraints

2012 ◽  
Vol 85 (6) ◽  
Author(s):  
Aikaterini Mandilara ◽  
Nicolas J. Cerf
Keyword(s):  
Quantum Bit ◽  
Bit Commitment
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