Cryptology ePrint Archive: BibTeX Citation of Report 2010/194

@misc{cryptoeprint:2010:194,
    author = {Sherman S.M. Chow and Joseph K. Liu and Jianying Zhou},
    title = {Identity-Based Online/Offline Key Encapsulation and Encryption},
    howpublished = {Cryptology ePrint Archive, Report 2010/194},
    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.