Cryptology ePrint Archive: BibTeX Citation of Report 2010/477

@misc{cryptoeprint:2010:477,
    author = {Demijan Klinc and Carmit Hazay and Ashish Jagmohan and Hugo Krawczyk and and Tal Rabin},
    title = {On Compression of Data Encrypted with Block Ciphers},
    howpublished = {Cryptology ePrint Archive, Report 2010/477},
    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.