@misc{cryptoeprint:2016:1136,
    author = {Phan Duong Hieu and Neal Koblitz},
    title = {Cryptography During the French and American Wars in Vietnam},
    howpublished = {Cryptology ePrint Archive, Report 2016/1136},
    year = {2016},
    url = {https://eprint.iacr.org/2016/1136},
}