Cryptology ePrint Archive: BibTeX Citation of Report 2005/315

@misc{cryptoeprint:2005:315,
    author = {David Molnar and Andrea Soppera and David Wagner},
    title = {A Scalable, Delegatable Pseudonym Protocol Enabling Ownership Transfer of RFID Tags},
    howpublished = {Cryptology ePrint Archive, Report 2005/315},
    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.