Po-Chun Liu Sheng-Kai Hung Yarsun Hsu Security Enhancement and Performance Evaluation of an Object-Based Storage System. 408-419 2007 conf/hpcc/2007 HPCC http://dx.doi.org/10.1007/978-3-540-75444-2_41 db/conf/hpcc/hpcc2007.html#LiuHH07