| 摘要 |
A license protection system for licensing a software installation comprising a license server and an installed software, preferably a billing software, wherein the license server stores encrypted license information for the software, and the software comprises a retrieval means for retrieving license information from said license server and a decryption means for decrypting the license information is characterised in that the license information contains a volume limit for the use of said software, the software comprises measurement means for measuring the volume of use of the software and control means for allowing the use of the software depending on said volume limit. The volume limit is preferably a data limit per time unit (T), corresponding to an amount of data (23) processed by the software per time unit. |
