@misc{cryptoeprint:2015:070,
    author = {Gaëtan  Leurent and Lei Wang},
    title = {The Sum Can Be Weaker Than Each Part},
    howpublished = {Cryptology ePrint Archive, Report 2015/070},
    year = {2015},
    url = {https://eprint.iacr.org/2015/070},
}