@misc{cryptoeprint:2021:732,
    author = {Congming Wei and Chenhao Wu and Ximing Fu and Xiaoyang Dong and Kai He and Jue Hong and Xiaoyun Wang},
    title = {Preimage Attacks on 4-round Keccak by Solving Multivariate Quadratic Systems},
    howpublished = {Cryptology ePrint Archive, Report 2021/732},
    year = {2021},
    url = {https://eprint.iacr.org/2021/732},
}