Cryptology ePrint Archive: BibTeX Citation of Report 2008/247

@misc{cryptoeprint:2008:247,
    author = {S. Sharmila Deva Selvi and S. Sree Vivek and Naga Naresh Karuturi and Ragavendran Gopalakrishnan and Pandu Rangan Chandrasekaran},
    title = {Cryptanalysis of Bohio et al.'s ID-Based Broadcast Signcryption (IBBSC) Scheme for Wireless Ad-hoc Networks},
    howpublished = {Cryptology ePrint Archive, Report 2008/247},
    year = {2008},
    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.