Cryptology ePrint Archive: BibTeX Citation of Report 2011/299

@misc{cryptoeprint:2011:299,
    author = {Palash Sarkar},
    title = {Modes of Operations for Encryption and Authentication Using Stream Ciphers Supporting an Initialisation Vector},
    howpublished = {Cryptology ePrint Archive, Report 2011/299},
    year = {2011},
    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.