@misc{cryptoeprint:2018:807,
    author = {Nicolas T. Courtois},
    title = {On the Existence of Non-Linear Invariants and Algebraic Polynomial Constructive Approach to Backdoors in Block Ciphers},
    howpublished = {Cryptology ePrint Archive, Report 2018/807},
    year = {2018},
    url = {https://eprint.iacr.org/2018/807},
}