Cryptology ePrint Archive: BibTeX Citation of Report 2007/391

@misc{cryptoeprint:2007:391,
    author = {Reza Ebrahimi Atani, Shahabaddin Ebrahimi Atani, Sattar Mirzakuchaki},
    title = {A novel public key crypto system based on semi-modules over quotient semi-rings},
    howpublished = {Cryptology ePrint Archive, Report 2007/391},
    year = {2007},
    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.