@misc{cryptoeprint:2014:869,
author = {Werner Schindler},
title = {Exclusive Exponent Blinding May Not Suffice to Prevent Timing Attacks on RSA},
howpublished = {Cryptology ePrint Archive, Report 2014/869},
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.