Cryptology ePrint Archive: BibTeX Citation of Report 2015/910

@misc{cryptoeprint:2015:910,
    author = {Alonso González and Alejandro Hevia and Carla Ràfols},
    title = {QA-NIZK Arguments in Asymmetric Groups: New Tools and New Constructions},
    howpublished = {Cryptology ePrint Archive, Report 2015/910},
    year = {2015},
    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.