HierStar dynamic password system adopt a number of advanced technologies, such as: original time drift correction technology, multi-protocal access, supporting multiple authentication mechisims, hot stand-by, load balancing strategy, and data base cluster strategy.  All above technologies enhance the authentication concurrent frequency and the number of usage. Use-friendly web management interface, ease-to-use, online html helping interface, and real-time graphical statistic interface can feciliate users to use and audit. Regarding to the diversitification of enterprises, HierStar dynamic password authentication system can provide a set of comprehensive and flexible solution to enterprises’ internal multiple applications, which includes hardware tokens, OTP cards, and handset tokens.