@misc{cryptoeprint:2008:357,
author = {Vadym Fedyukovych and Vitaliy Sharapov},
title = {A protocol for K-multiple substring matching},
howpublished = {Cryptology ePrint Archive, Report 2008/357},
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.