@misc{cryptoeprint:2015:068,
    author = {Gregor Leander and Brice Minaud and Sondre Rønjom},
    title = {A Generic Approach to Invariant Subspace Attacks: Cryptanalysis of Robin, iSCREAM and Zorro},
    howpublished = {Cryptology ePrint Archive, Report 2015/068},
    year = {2015},
    url = {https://eprint.iacr.org/2015/068},
}