Cryptology ePrint Archive: BibTeX Citation of Report 2013/664

@misc{cryptoeprint:2013:664,
    author = {Michael Backes and Praveen Manoharan and Esfandiar Mohammadi},
    title = {TUC: Time-sensitive and Modular Analysis of Anonymous Communication},
    howpublished = {Cryptology ePrint Archive, Report 2013/664},
    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.