@misc{cryptoeprint:2000:057,
author = {Oded Goldreich and Yehuda Lindell},
title = {Session-Key Generation using Human Passwords Only},
howpublished = {Cryptology ePrint Archive, Report 2000/057},
year = {2000},
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.