@misc{cryptoeprint:2005:220,
    author = {Michael Backes and Birgit Pfitzmann},
    title = {Limits of the Cryptographic Realization of Dolev-Yao-style XOR},
    howpublished = {Cryptology ePrint Archive, Report 2005/220},
    year = {2005},
    url = {http://eprint.iacr.org/2005/220},
}