%0 Journal Article
%T A Modified Wigner's Inequality for Secure Quantum Key Distribution
%A S. Castelletto
%A I. P. Degiovanni
%A M. L. Rastello
%J Physics
%D 2003
%I arXiv
%R 10.1103/PhysRevA.67.044303
%X In this report we discuss the insecurity with present implementations of the Ekert protocol for quantum-key distribution based on the Wigner Inequality. We propose a modified version of this inequality which guarantees safe quantum-key distribution.
%U http://arxiv.org/abs/quant-ph/0302196v1