@misc{cryptoeprint:2014:878,
author = {Eric Miles and Amit Sahai and Mor Weiss},
title = {Protecting obfuscation against arithmetic attacks},
howpublished = {Cryptology ePrint Archive, Report 2014/878},
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.