Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Making An Empty Promise With A Quantum Computer (Or, A Brief Review on the Impossibility of Quantum Bit Commitment).

H. F. Chau, Hoi‐Kwong Lo

Published Jan 1, 1998• 0 citations
OpenAlex

Related papers

A short impossibility proof of quantum bit commitment

Giulio Chiribella, Giacomo Mauro D’Ariano, Paolo Perinotti +2 more

arXiv:0905.3801•Physics Letters A•Feb 28, 2013•38 citations

On the impossibility of non-static quantum bit commitment between two parties

Qin Li, Chengqing Li, Dongyang Long +2 more

arXiv:1101.5684•Quantum Information Processing•Jul 27, 2011•9 citations

A brief review on the impossibility of quantum bit commitment

Gilles Brassard A, Claude Crépeau, Dominic Mayers +1 more

The desire to obtain an unconditionally secure bit commitment protocol in quantum cryptography was expressed for the first time thirteen years ago. Bit commitment is sufficient in quantum cryptography to realize a variety of applications with unconditional security. In 1993, a quantum bit commitment protocol was proposed together with a security proof. However, a basic flaw in the protocol was discovered by Mayers in 1995 and subsequently by Lo and Chau. Later the result was generalized by Mayers who showed that unconditionally secure bit commitment is impossible. A brief review on quantum bit commitment which focuses on the general impossibility theorem and on recent attempts to bypass this result is provided.

arXiv:quant-ph/9712023•Dec 10, 1997•25 citations

Is Quantum Bit Commitment Really Impossible?

András Bodor

This paper has been withdrawn.

arXiv:quant-ph/9711040•Nov 19, 1997•1 citation

Secure quantum bit commitment against empty promises

Guang Ping He

The existence of unconditionally secure quantum bit commitment (QBC) is excluded by the Mayers-Lo-Chau no-go theorem. Here we look for the second-best: a QBC protocol that can defeat certain quantum attacks. By breaking the knowledge symmetry between the participants with quantum algorithm, a QBC protocol is proposed and is proven to be secure against a major kind of coherent attacks---the dummy attack, in which the participant makes an empty promise instead of committing to a specific bit. Therefore it surpasses previous QBC protocols which are secure against individual attacks only.

Physical Review A•Aug 31, 2006•14 citations

The Quantum Bit Commitment Theorem

Jeffrey Bub

arXiv:quant-ph/0007090•Foundations of Physics•May 1, 2001•31 citations
The desire to obtain an unconditionally secure bit commitment protocol in quantum cryptography was expressed for the first time thirteen years ago. Bit commitment is sufficient in quantum cryptography to realize a variety of applications with unconditional security. In 1993, a quantum bit commitment protocol was proposed together with a security proof. However, a basic flaw in the protocol was discovered by Mayers in 1995 and subsequently by Lo and Chau. Later the result was generalized by Mayers who showed that unconditionally secure bit commitment is impossible. A brief review on quantum bit commitment which focuses on the general impossibility theorem and on recent attempts to bypass this result is provided.
The existence of unconditionally secure quantum bit commitment (QBC) is excluded by the Mayers-Lo-Chau no-go theorem. Here we look for the second-best: a QBC protocol that can defeat certain quantum attacks. By breaking the knowledge symmetry between the participants with quantum algorithm, a QBC protocol is proposed and is proven to be secure against a major kind of coherent attacks---the dummy attack, in which the participant makes an empty promise instead of committing to a specific bit. Therefore it surpasses previous QBC protocols which are secure against individual attacks only.