@misc{cryptoeprint:2008:452,
    author = {Rui Xue  and  Dengguo Feng},
    title = {Injective Trapdoor Functions are Necessary and Sufficient for CCA2 Secure Public-Key Cryptosystems},
    howpublished = {Cryptology ePrint Archive, Report 2008/452},
    year = {2008},
    url = {http://eprint.iacr.org/2008/452},
}