@misc{cryptoeprint:2010:284,
author = {Yehuda Lindell and Benny Pinkas},
title = {Secure Two-Party Computation via Cut-and-Choose Oblivious Transfer},
howpublished = {Cryptology ePrint Archive, Report 2010/284},
year = {2010},
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.