Cryptology ePrint Archive: BibTeX Citation of Report 2012/066

@misc{cryptoeprint:2012:066,
    author = {Jiqiang Lu and Wen-She Yap and Yongzhuang Wei},
    title = {Weak Keys of the Full MISTY1 Block Cipher for Related-Key Cryptanalysis},
    howpublished = {Cryptology ePrint Archive, Report 2012/066},
    year = {2012},
    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.