Cryptology ePrint Archive: BibTeX Citation of Report 2007/453

@misc{cryptoeprint:2007:453,
    author = {Kenneth G. Paterson and Sriramkrishnan Srinivasan},
    title = {On the Relations Between Non-Interactive Key Distribution, Identity-Based Encryption and Trapdoor Discrete Log Groups},
    howpublished = {Cryptology ePrint Archive, Report 2007/453},
    year = {2007},
    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.