Is Quantum Bit Commitment Really Possible?
Quantum Physics
2016-08-25 v2 Cryptography and Security
Abstract
We show that all proposed quantum bit commitment schemes are insecure because the sender, Alice, can almost always cheat successfully by using an Einstein-Podolsky-Rosen type of attack and delaying her measurement until she opens her commitment.
Keywords
Cite
@article{arxiv.quant-ph/9603004,
title = {Is Quantum Bit Commitment Really Possible?},
author = {Hoi-Kwong Lo and H. F. Chau},
journal= {arXiv preprint arXiv:quant-ph/9603004},
year = {2016}
}
Comments
Major revisions to include a more extensive introduction and an example of bit commitment. Overlap with independent work by Mayers acknowledged. More recent works by Mayers, by Lo and Chau and by Lo are also noted. Accepted for publication in Phys. Rev. Lett