Cryptology ePrint Archive: BibTeX Citation of Report 2005/194

@misc{cryptoeprint:2005:194,
    author = {Ryutaroh Matsumoto, Kaoru Kurosawa, Toshiya Itoh, Toshimitsu Konno, and Tomohiko Uyematsu},
    title = {Primal-Dual Distance Bounds of Linear Codes with Application to Cryptography},
    howpublished = {Cryptology ePrint Archive, Report 2005/194},
    year = {2005},
    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.