@misc{cryptoeprint:2012:193,
    author = {Liangliang Xiao and Osbert Bastani and I-Ling Yen},
    title = {An Efficient Homomorphic Encryption Protocol  for Multi-User Systems},
    howpublished = {Cryptology ePrint Archive, Report 2012/193},
    year = {2012},
    url = {http://eprint.iacr.org/2012/193},
}