@misc{cryptoeprint:2003:096,
    author = {Alexandra Boldyreva and Adriana Palacio and Bogdan Warinschi},
    title = {Secure Proxy Signature Schemes for Delegation of Signing Rights},
    howpublished = {Cryptology ePrint Archive, Report 2003/096},
    year = {2003},
    url = {http://eprint.iacr.org/2003/096},
}