@misc{cryptoeprint:2014:635,
author = {Sanjit Chatterjee and Alfred Menezes},
title = {Type 2 Structure-Preserving Signature Schemes Revisited},
howpublished = {Cryptology ePrint Archive, Report 2014/635},
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.