Cryptology ePrint Archive: BibTeX Citation of Report 2013/226

@misc{cryptoeprint:2013:226,
    author = {Maggie Habeeb and Delaram Kahrobaei and Charalambos Koupparis and Vladimir Shpilrain},
    title = {Public key exchange using semidirect product of (semi)groups},
    howpublished = {Cryptology ePrint Archive, Report 2013/226},
    year = {2013},
    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.