@misc{cryptoeprint:2015:446,
    author = {Ronald Cramer and Ivan Damgård and Marcel Keller},
    title = {On the Amortized Complexity of Zero-knowledge Protocols},
    howpublished = {Cryptology ePrint Archive, Report 2015/446},
    year = {2015},
    url = {https://eprint.iacr.org/2015/446},
}