@misc{cryptoeprint:2007:363,
author = {{\L}ukasz Chmielewski and Jaap-Henk Hoepman},
title = {Fuzzy Private Matching (Extended Abstract)},
howpublished = {Cryptology ePrint Archive, Report 2007/363},
year = {2007},
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.