@misc{cryptoeprint:2000:027,
    author = {Ahto Buldas and Peeter Laud and Helger Lipmaa},
    title = {Accountable Certificate Management using Undeniable Attestations},
    howpublished = {Cryptology ePrint Archive, Report 2000/027},
    year = {2000},
    url = {http://eprint.iacr.org/2000/027},
}