Cryptology ePrint Archive: BibTeX Citation of Report 2014/715

@misc{cryptoeprint:2014:715,
    author = {Vanga Odelu  and  Ashok Kumar Das  and  Adrijit Goswami},
    title = {Cryptanalysis on `Robust Biometrics-Based Authentication Scheme for Multi-server Environment'},
    howpublished = {Cryptology ePrint Archive, Report 2014/715},
    year = {2014},
    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.