Cryptology ePrint Archive: BibTeX Citation of Report 2015/872

@misc{cryptoeprint:2015:872,
    author = {Seyed Salman Sajjadi GhaemMaghami, Afrooz Haghbin, Mahtab Mirmohseni},
    title = {Traceability Improvements of a New RFID Protocol Based On EPC C1G2},
    howpublished = {Cryptology ePrint Archive, Report 2015/872},
    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.