@misc{cryptoeprint:2002:033,
    author = {Yodai Watanabe and Junji Shikata and Hideki Imai},
    title = {Equivalence between semantic security and indistinguishability against chosen ciphertext attacks},
    howpublished = {Cryptology ePrint Archive, Report 2002/033},
    year = {2002},
    url = {http://eprint.iacr.org/2002/033},
}