@misc{cryptoeprint:2019:556,
    author = {Gideon Samid},
    title = {When Encryption is Not Enough --  Effective Concealment of Communication Pattern, even Existence (BitGrey, BitLoop)},
    howpublished = {Cryptology ePrint Archive, Report 2019/556},
    year = {2019},
    url = {https://eprint.iacr.org/2019/556},
}