Low Cost and High Concurrency ID Maker in Distributed Environment Kan Yao, Hu-Xuan Ni, Yuan Wang, Jing Tuo, Yun-Feng Li and Jun-Jie Ding ITM Web Conf., 12 (2017) 03003 Published online: 05 September 2017 DOI: 10.1051/itmconf/20171203003