Cryptology ePrint Archive: BibTeX Citation of Report 2002/028

@misc{cryptoeprint:2002:028,
    author = {Jung Hee Cheon},
    title = {A Universal Forgery of Hess's Second ID-based Signature against the Known-message Attack},
    howpublished = {Cryptology ePrint Archive, Report 2002/028},
    year = {2002},
    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.