Cryptology ePrint Archive: BibTeX Citation of Report 2015/770

@misc{cryptoeprint:2015:770,
    author = {Michele Ciampi, Giuseppe Persiano, Luisa Siniscalchi, Ivan Visconti},
    title = {A Transform for NIZK Almost as Efficient and General as the Fiat-Shamir Transform  Without Programmable Random Oracles},
    howpublished = {Cryptology ePrint Archive, Report 2015/770},
    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.