@misc{cryptoeprint:2008:374,
    author = {Masayuki Abe and Eike Kiltz and Tatsuaki Okamoto},
    title = {Chosen Ciphertext Security with Optimal Ciphertext Overhead},
    howpublished = {Cryptology ePrint Archive, Report 2008/374},
    year = {2008},
    url = {http://eprint.iacr.org/2008/374},
}