@misc{cryptoeprint:2013:409,
author = {Tal Malkin and Isamu Teranishi and Moti Yung},
title = {Order-Preserving Encryption Secure Beyond One-Wayness},
howpublished = {Cryptology ePrint Archive, Report 2013/409},
year = {2013},
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.