@misc{cryptoeprint:2021:653,
    author = {Behzad Abdolmaleki and Hamidreza Khoshakhlagh and Helger Lipmaa},
    title = {Smooth Zero-Knowledge Hash Functions},
    howpublished = {Cryptology ePrint Archive, Report 2021/653},
    year = {2021},
    url = {https://eprint.iacr.org/2021/653},
}