Cryptology ePrint Archive: BibTeX Citation of Report 2006/222

@misc{cryptoeprint:2006:222,
    author = {R. Overbeck},
    title = {Decoding Interleaved Gabidulin Codes and Ciphertext-Security for GPT variants},
    howpublished = {Cryptology ePrint Archive, Report 2006/222},
    year = {2006},
    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.