Cryptology ePrint Archive: BibTeX Citation of Report 2014/627

@misc{cryptoeprint:2014:627,
    author = {Debrup Chakraborty and Palash Sarkar},
    title = {On Modes of Operations of a Block Cipher for Authentication and Authenticated Encryption},
    howpublished = {Cryptology ePrint Archive, Report 2014/627},
    year = {2014},
    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.