@misc{cryptoeprint:2015:205,
    author = {Jooyoung Lee},
    title = {Towards Key-Length Extension with Optimal Security: Cascade Encryption and Xor-cascade Encryption},
    howpublished = {Cryptology ePrint Archive, Report 2015/205},
    year = {2015},
    url = {https://eprint.iacr.org/2015/205},
}