@misc{cryptoeprint:2012:532,
author = {Liangze Li and Hongfeng Wu and Fan Zhang},
title = {Pairing computation on Edwards curves with high-degree twists},
howpublished = {Cryptology ePrint Archive, Report 2012/532},
year = {2012},
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.