Cryptology ePrint Archive: BibTeX Citation of Report 2006/357

@misc{cryptoeprint:2006:357,
    author = {Su-Jeong Choi and Simon R. Blackburn and Peter R. Wild},
    title = {Cryptanalysis of a homomorphic public-key cryptosystem over a finite group},
    howpublished = {Cryptology ePrint Archive, Report 2006/357},
    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.