@misc{cryptoeprint:2009:280,
    author = {Giuseppe Ateniese and Paolo Gasti},
    title = {Universally Anonymous IBE based on the Quadratic Residuosity Assumption},
    howpublished = {Cryptology ePrint Archive, Report 2009/280},
    year = {2009},
    url = {http://eprint.iacr.org/2009/280},
}