Cryptology ePrint Archive: BibTeX Citation of Report 2011/361

@misc{cryptoeprint:2011:361,
    author = {S. Sree Vivek, S. Sharmila Deva Selvi, C. Pandu Rangan},
    title = {The Exact Security of a Stateful IBE and New Compact Stateful PKE Schemes},
    howpublished = {Cryptology ePrint Archive, Report 2011/361},
    year = {2011},
    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.