@misc{cryptoeprint:2013:544,
    author = {Christian Hanser and Daniel Slamanig},
    title = {Warrant-Hiding Delegation-by-Certificate Proxy Signature Schemes},
    howpublished = {Cryptology ePrint Archive, Report 2013/544},
    year = {2013},
    url = {https://eprint.iacr.org/2013/544},
}