Cryptology ePrint Archive: BibTeX Citation of Report 2005/268

@misc{cryptoeprint:2005:268,
    author = {Shujun Li and Heung-Yeung Shum},
    title = {Secure Human-Computer Identification (Interface) Systems against Peeping Attacks: SecHCI},
    howpublished = {Cryptology ePrint Archive, Report 2005/268},
    year = {2005},
    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.