Cryptology ePrint Archive: BibTeX Citation of Report 2015/117

@misc{cryptoeprint:2015:117,
    author = {Maciej Skorski},
    title = {Nonuniform Indistinguishability and Unpredictability Hardcore Lemmas: New Proofs and Applications to Pseudoentropy},
    howpublished = {Cryptology ePrint Archive, Report 2015/117},
    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.