@misc{cryptoeprint:2013:182,
author = {Julien Bringer and Herve Chabanne and Alain Patey},
title = {Collusion-Resistant Domain-Specific Pseudonymous Signatures},
howpublished = {Cryptology ePrint Archive, Report 2013/182},
year = {2013},
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.