@misc{cryptoeprint:2011:363,
    author = {Essam Ghadafi},
    title = {Dynamic Group Blind Signatures: Security Definitions and Efficient Constructions without Random Oracles},
    howpublished = {Cryptology ePrint Archive, Report 2011/363},
    year = {2011},
    url = {http://eprint.iacr.org/2011/363},
}