Cryptology ePrint Archive: BibTeX Citation of Report 2010/092

@misc{cryptoeprint:2010:092,
    author = {S.Sharmila Deva Selvi and S.Sree Vivek and C.Pandu Rangan},
    title = {Security Weaknesses in Two Certificateless Signcryption  Schemes},
    howpublished = {Cryptology ePrint Archive, Report 2010/092},
    year = {2010},
    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.