How to Build Unconditionally Secure Quantum Bit Commitment Protocols
Quantum Physics
2007-05-23 v3
Abstract
The ``impossibility proof'' on unconditionally secure quantum bit commitment is critically analyzed. Many possibilities for obtaining a secure bit commitment protocol are indicated, purely on the basis of two-way quantum communications, which are not covered by the impossibility proof formulation. They are classified under six new types of protocols, with security proofs for specific examples on four types. Reasons for some previously failed attempts at obtaining secure protocols are also indicated.
Keywords
Cite
@article{arxiv.quant-ph/0305144,
title = {How to Build Unconditionally Secure Quantum Bit Commitment Protocols},
author = {Horace P. Yuen},
journal= {arXiv preprint arXiv:quant-ph/0305144},
year = {2007}
}
Comments
10 pages, revtex4; significant changes (see footnote)