@misc{cryptoeprint:2002:160,
    author = {Matt Blaze},
    title = {Cryptology and Physical Security: Rights Amplification in Master-Keyed Mechanical Locks},
    howpublished = {Cryptology ePrint Archive, Report 2002/160},
    year = {2002},
    url = {http://eprint.iacr.org/2002/160},
}