FusionSys HES encoder - Version 0.51 While FusionSys HES (Hierarchical Encryption System) belongs to a group of common key encryption systems, it has a striking feature:Master keys exist. Let's say there are 3 people and they have keys with different degrees of strength.The person with the strongest key can decrypt all encrypted data while the person with the weakest key can only decrypt a small set of the data. Moreover, the person with the intermediate key can decrypt a subset of the data. By using HES, one can introduce various kinds of hierarchical structure in Web pages. This program is the FusionSys HES encoder. Please visit http://fusionsys.com/ and see for yourself!!