@misc{cryptoeprint:2013:440,
    author = {Mitsugu Iwamoto and Junji Shikata},
    title = {Revisiting Conditional R\'enyi Entropies and Generalizing Shannon's Bounds in Information Theoretically Secure Encryption},
    howpublished = {Cryptology ePrint Archive, Report 2013/440},
    year = {2013},
    url = {https://eprint.iacr.org/2013/440},
}