@misc{cryptoeprint:2015:178,
author = {Pablo Daniel Azar and Shafi Goldwasser and Sunoo Park},
title = {On Time and Order in Multiparty Computation},
howpublished = {Cryptology ePrint Archive, Report 2015/178},
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.