Skip to main content

NOTICE: Due to a lapse in annual appropriations, most of this website is not being updated. Learn more.

Form submissions will still be accepted but will not receive responses at this time. Sections of this site for programs using non-appropriated funds (such as NVLAP) or those that are excepted from the shutdown (such as CHIPS and NVD) will continue to be updated.

U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Experimental Eavesdropping Attack Against Ekert's Protocol Based on Wigner's Inequality

Published

Author(s)

F Bovino, A Colla, G Castagnoli, Stefania Castelletto, Ivo P. Degiovanni, M L. Rastello

Abstract

We experimentally implemented an eavesdropping attack against the Ekert protocol for quantum key distribution based on the Wigner inequality. We demonstrate a serious lack of security of this protocol when the eavesdropper gains total control of the source. In addition we tested a modified Wigner inequality which should guarantee a secure quantum key distribution.
Citation
Physical Review A (Atomic, Molecular and Optical Physics)

Keywords

entanglement, quantum cryptography, quantum information, quantum non-locality

Citation

Bovino, F. , Colla, A. , Castagnoli, G. , Castelletto, S. , Degiovanni, I. and Rastello, M. (2008), Experimental Eavesdropping Attack Against Ekert's Protocol Based on Wigner's Inequality, Physical Review A (Atomic, Molecular and Optical Physics) (Accessed October 9, 2025)

Issues

If you have any questions about this publication or are having problems accessing it, please contact [email protected].

Created October 16, 2008
Was this page helpful?