@misc{cryptoeprint:2005:067,
    author = {Arjen Lenstra and Xiaoyun Wang and Benne de Weger},
    title = {Colliding X.509 Certificates},
    howpublished = {Cryptology ePrint Archive, Report 2005/067},
    year = {2005},
    url = {http://eprint.iacr.org/2005/067},
}