@misc{cryptoeprint:2008:208,
author = {Naoki Ogura and Shigenori Uchiyama},
title = {Remarks on the Attack of Fouque et al. against the {\ell}IC Scheme},
howpublished = {Cryptology ePrint Archive, Report 2008/208},
year = {2008},
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.