@misc{cryptoeprint:2014:288,
author = {Kevin J. Henry and Douglas R. Stinson},
title = {Resilient Aggregation in Simple Linear Sensor Networks},
howpublished = {Cryptology ePrint Archive, Report 2014/288},
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.