@misc{cryptoeprint:2010:054,
author = {Cai-Sen CHEN, Tao Wang, Jun-Jian Tian},
title = {An Improved Timing Attack with Error Detection on RSA-CRT},
howpublished = {Cryptology ePrint Archive, Report 2010/054},
year = {2010},
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.