Cryptology ePrint Archive: BibTeX Citation of Report 2011/357

@misc{cryptoeprint:2011:357,
    author = {Gilbert Baumslag and Nelly Fazio and Antonio R. Nicolosi and Vladimir Shpilrain and William E. Skeith III},
    title = {Generalized Learning Problems and Applications to Non-Commutative Cryptography},
    howpublished = {Cryptology ePrint Archive, Report 2011/357},
    year = {2011},
    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.