@misc{cryptoeprint:2007:273,
    author = {Mihir Bellare and Sarah Shoup},
    title = {Two-Tier Signatures, Strongly Unforgeable Signatures, and Fiat-Shamir without Random Oracles},
    howpublished = {Cryptology ePrint Archive, Report 2007/273},
    year = {2007},
    url = {http://eprint.iacr.org/2007/273},
}