Cryptology ePrint Archive: BibTeX Citation of Report 2012/048

@misc{cryptoeprint:2012:048,
    author = {Sourav Sen Gupta and Anupam Chattopadhyay and Ayesha Khalid},
    title = {Designing Integrated Accelerator for Stream Ciphers with Structural Similarities},
    howpublished = {Cryptology ePrint Archive, Report 2012/048},
    year = {2012},
    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.