@misc{cryptoeprint:2014:023,
author = {Gengran Hu and Yanbin Pan and Feng Zhang},
title = {Solving Random Subset Sum Problem by $l_{p}$-norm SVP Oracle},
howpublished = {Cryptology ePrint Archive, Report 2014/023},
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.