@misc{cryptoeprint:2019:1319,
    author = {Mingjiang Huang and Liming Wang},
    title = {Automatic Search for the Linear (hull) Characteristics of ARX Ciphers: Applied to SPECK, SPARX, Chaskey and CHAM-64},
    howpublished = {Cryptology ePrint Archive, Report 2019/1319},
    year = {2019},
    url = {https://eprint.iacr.org/2019/1319},
}