@misc{cryptoeprint:2021:648,
    author = {Mustafa Khairallah},
    title = {Security of COFB against Chosen Ciphertext Attacks},
    howpublished = {Cryptology ePrint Archive, Report 2021/648},
    year = {2021},
    url = {https://eprint.iacr.org/2021/648},
}