@misc{cryptoeprint:2018:362,
    author = {Marc Fischlin and Christian Janson and Sogol Mazaheri},
    title = {Backdoored Hash Functions: Immunizing HMAC and HKDF},
    howpublished = {Cryptology ePrint Archive, Report 2018/362},
    year = {2018},
    url = {https://eprint.iacr.org/2018/362},
}