Qubit-string-based bit commitment protocols with physical security
Quantum Physics
2012-07-02 v3
Abstract
Several kinds of qubit-string-based(QS-based) bit commitment protocols are presented, and a definition of information-theoretic concealing is given. All the protocols presented here are proved to be secure under this definition. We suggest an attack algorithm to obtain the local unitary transformation introduced in no-go theorem, which is used to attack the binding condition, then study the security of our QS-based bit commitment protocols under this attack via introducing a new concept "physical security of protocol". At last we present a practical QS-based bit commitment scheme against channel loss and error.
Cite
@article{arxiv.1011.5099,
title = {Qubit-string-based bit commitment protocols with physical security},
author = {Li Yang and Chong Xiang and Bao Li},
journal= {arXiv preprint arXiv:1011.5099},
year = {2012}
}
Comments
23 pages, 0 figures