@misc{cryptoeprint:2009:545,
author = {Ileana Buhan and Jeroen Doumen and Pieter Hartel},
title = {Fuzzy extractors for continuous distributions },
howpublished = {Cryptology ePrint Archive, Report 2009/545},
year = {2009},
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.