@misc{cryptoeprint:2017:450,
    author = {Elena Pagnin and Aikaterini Mitrokotsa},
    title = {Privacy-preserving biometric authentication: challenges and directions},
    howpublished = {Cryptology ePrint Archive, Report 2017/450},
    year = {2017},
    url = {https://eprint.iacr.org/2017/450},
}