@misc{cryptoeprint:2021:016,
    author = {Geoffroy Couteau and Pooya Farshim and Mohammad Mahmoody},
    title = {Black-Box Uselessness: Composing Separations in Cryptography},
    howpublished = {Cryptology ePrint Archive, Report 2021/016},
    year = {2021},
    url = {https://eprint.iacr.org/2021/016},
}