@misc{cryptoeprint:2013:569, 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 2013/569}, year = {2013}, url = {https://eprint.iacr.org/2013/569}, }