On the Security of Two Blind Quantum Computations
Quantum Physics
2015-09-01 v1
Abstract
Blind quantum computation (BQC) protocol allows a client having partial quantum ability to delegate his quantum computation to a remote quantum server without leaking any information about the input, the output and the intended computation to the server. Several BQC protocols have been proposed, e.g., Li et al. in [1] proposed a triple-server BQC protocol and Xu et al. in [2] proposed a single-server BQC protocol. Though both papers claimed that their protocols can satisfy the requirement of privacy, this paper points out a security loophole in their protocols. With that the server can reveal the private information of the client.
Cite
@article{arxiv.1508.07478,
title = {On the Security of Two Blind Quantum Computations},
author = {Shih-Min Hung and Tzonelih Hwang},
journal= {arXiv preprint arXiv:1508.07478},
year = {2015}
}