@misc{cryptoeprint:2013:046,
author = {Tore Kasper Frederiksen and Jesper Buus Nielsen},
title = {Fast and Maliciously Secure Two-Party Computation Using the GPU},
howpublished = {Cryptology ePrint Archive, Report 2013/046},
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.