@misc{cryptoeprint:2008:346,
author = {Ee-Chien Chang and Jia Xu},
title = {Remote Integrity Check with Dishonest Storage Server},
howpublished = {Cryptology ePrint Archive, Report 2008/346},
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.