@misc{cryptoeprint:2003:181,
    author = {Rui Zhang and Goichiro Hanaoka and Junji Shikata and Hideki Imai},
    title = {On the Security of Multiple Encryption or CCA-security+CCA-security=CCA-security?},
    howpublished = {Cryptology ePrint Archive, Report 2003/181},
    year = {2003},
    url = {http://eprint.iacr.org/2003/181},
}