@misc{cryptoeprint:2010:112,
author = {Jun Shao and Zhenfu Cao and Peng Liu},
title = {CCA-Secure PRE Scheme without Random Oracles},
howpublished = {Cryptology ePrint Archive, Report 2010/112},
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.