@misc{cryptoeprint:2010:064,
author = {Ulrike Meyer and Susanne Wetzel and Sotiris Ioannidis},
title = {New Advances on Privacy-Preserving Policy Reconciliation},
howpublished = {Cryptology ePrint Archive, Report 2010/064},
year = {2010},
note = {\url{http://eprint.iacr.org/}},
}
You will need the url.sty package (comes with most LaTeX installations) for the last line. Otherwise, remove the \url command.