Cryptology ePrint Archive: BibTeX Citation of Report 2015/300

@misc{cryptoeprint:2015:300,
    author = {Sébastien Canard, David Pointcheval, Olivier Sanders and Jacques Traoré},
    title = {Scalable Divisible E-cash},
    howpublished = {Cryptology ePrint Archive, Report 2015/300},
    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.