@misc{cryptoeprint:2015:450,
author = {Carmit Hazay and Yehuda Lindell and Arpita Patra},
title = {Adaptively Secure Computation with Partial Erasures},
howpublished = {Cryptology ePrint Archive, Report 2015/450},
year = {2015},
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.