@misc{cryptoeprint:2013:550,
    author = {Zhenfu Cao and Xiaolei Dong and Licheng Wang and Jun Shao},
    title = {More Efficient Cryptosystems From k-th Power Residues},
    howpublished = {Cryptology ePrint Archive, Report 2013/550},
    year = {2013},
    url = {https://eprint.iacr.org/2013/550},
}