Cryptology ePrint Archive: BibTeX Citation of Report 2014/496

@misc{cryptoeprint:2014:496,
    author = {Maryam Rajabzadeh Asaar and Mahmoud Salmasizadeh and Willy Susilo},
    title = {Security Pitfalls of a Provably Secure Identity-based Multi-Proxy Signature Scheme},
    howpublished = {Cryptology ePrint Archive, Report 2014/496},
    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.