Cryptology ePrint Archive: BibTeX Citation of Report 2013/108

@misc{cryptoeprint:2013:108,
    author = {Ivan Damgard and Alessandra Scafuro},
    title = {Unconditionally Secure and Universally Composable Commitments from Physical Assumptions},
    howpublished = {Cryptology ePrint Archive, Report 2013/108},
    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.