@misc{cryptoeprint:2005:040,
    author = {Juan M. Estevez-Tapiador and Almudena Alcaide},
    title = {Unfairness of a protocol for certified delivery},
    howpublished = {Cryptology ePrint Archive, Report 2005/040},
    year = {2005},
    url = {http://eprint.iacr.org/2005/040},
}