Journal
OPTICS COMMUNICATIONS
Volume 284, Issue 1, Pages 545-549Publisher
ELSEVIER
DOI: 10.1016/j.optcom.2010.09.005
Keywords
Quantum secure computation; Comparison; Phase shifting operator; Privacy
Categories
Funding
- NSFC [60873191, 60903152, 61003286, 60821001]
- SRFDP [200800131016, 20090005110010]
- Beijing Nova Program [2008B51]
- Chinese Ministry of Education [109014]
Ask authors/readers for more resources
We present a quantum protocol for the solution of a two-party comparison task with the help of a semi-honest third party, which can be used to solve the millionaire problem. The secrets are coded into the phases of d-level entangled states by local operations and read by the third party's collective measurements. The two parties can deduce the results of comparisons based on the secret bits shared between them beforehand and the announcement of the third party. Moreover, others will learn no information of the comparison results, even the third party. Our scheme is private and fair, and the security has also been discussed. (C) 2010 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available