Cryptology ePrint Archive: BibTeX Citation of Report 2013/304

@misc{cryptoeprint:2013:304,
    author = {Anthony Van Herrewege and Vincent van der Leest and Andr\'e Schaller and Stefan Katzenbeisser and Ingrid Verbauwhede},
    title = {Secure PRNG Seeding on Commercial Off-the-Shelf Microcontrollers},
    howpublished = {Cryptology ePrint Archive, Report 2013/304},
    year = {2013},
    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.