@misc{cryptoeprint:2015:895,
author = {Guy Barwell and Dan Page and Martijn Stam},
title = {Rogue Decryption Failures: Reconciling AE Robustness Notions},
howpublished = {Cryptology ePrint Archive, Report 2015/895},
year = {2015},
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.