Cryptology ePrint Archive: BibTeX Citation of Report 2010/564

@misc{cryptoeprint:2010:564,
    author = {Ali Doğanaksoy, Barış Ege, Onur Koçak and Fatih Sulak},
    title = {Cryptographic Randomness Testing of Block Ciphers and Hash Functions},
    howpublished = {Cryptology ePrint Archive, Report 2010/564},
    year = {2010},
    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.