@misc{cryptoeprint:2015:1018,
    author = {Neal Koblitz and Alfred Menezes},
    title = {A Riddle Wrapped in an Enigma},
    howpublished = {Cryptology ePrint Archive, Report 2015/1018},
    year = {2015},
    url = {https://eprint.iacr.org/2015/1018},
}