@misc{cryptoeprint:2014:902,
    author = {Siyao Guo and Tal Malkin and Igor C. Oliveira and Alon Rosen},
    title = {The Power of Negations in Cryptography},
    howpublished = {Cryptology ePrint Archive, Report 2014/902},
    year = {2014},
    url = {https://eprint.iacr.org/2014/902},
}