@misc{cryptoeprint:2015:1004,
    author = {Shinya Okumura and Shingo Sugiyama and Masaya Yasuda and Tsuyoshi Takagi},
    title = {Security Analysis of Cryptosystems Using Short Generators over Ideal Lattices},
    howpublished = {Cryptology ePrint Archive, Report 2015/1004},
    year = {2015},
    url = {https://eprint.iacr.org/2015/1004},
}