@misc{cryptoeprint:2015:547,
author = {Xiao Shaun Wang and S. Dov Gordon and Allen McIntosh and Jonathan Katz},
title = {Secure Computation of MIPS Machine Code},
howpublished = {Cryptology ePrint Archive, Report 2015/547},
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.