@misc{cryptoeprint:2002:178,
author = {Fangguo Zhang, Shengli Liu and Kwangjo Kim},
title = {Attack on A New Public Key Cryptosystem from ISC'02 (LNCS 2433)},
howpublished = {Cryptology ePrint Archive, Report 2002/178},
year = {2002},
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.