Cryptology ePrint Archive: BibTeX Citation of Report 2002/101

@misc{cryptoeprint:2002:101,
    author = {Simon R. Blackburn},
    title = {An Upper Bound on the Size of a Code with the $k$-Identifiable Parent Property},
    howpublished = {Cryptology ePrint Archive, Report 2002/101},
    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.