@misc{cryptoeprint:2014:219,
author = {Muhammad Naveed and Manoj Prabhakaran and Carl A. Gunter},
title = {Dynamic Searchable Encryption via Blind Storage},
howpublished = {Cryptology ePrint Archive, Report 2014/219},
year = {2014},
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.