@misc{cryptoeprint:2014:983,
author = {Giulia Alberini and Tal Moran and Alon Rosen},
title = {Public Verification of Private Effort},
howpublished = {Cryptology ePrint Archive, Report 2014/983},
year = {2014},
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.