Cryptology ePrint Archive: BibTeX Citation of Report 2007/089

@misc{cryptoeprint:2007:089,
    author = {Ueli Maurer and Dominik Raub},
    title = {Black-Box Extension Fields and the Inexistence of Field-Homomorphic One-Way Permutations},
    howpublished = {Cryptology ePrint Archive, Report 2007/089},
    year = {2007},
    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.