Cryptology ePrint Archive: BibTeX Citation of Report 2006/133

@misc{cryptoeprint:2006:133,
    author = {Francisco Rodr\'{i}guez-Henr\'{i}quez and Guillermo Morales-Luna and Julio L\'{o}pez-Hern\'{a}ndez},
    title = {Low Complexity Bit-Parallel Square Root Computation over GF($2^m$) for all Trinomials },
    howpublished = {Cryptology ePrint Archive, Report 2006/133},
    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.