A Light-Weight Solution Of Digital Copyright Management In M-Commerce

The rapid development of mobile communication technology promotes the development of M-commerce, which makes that the applications of M-commerce are now undergoing the evolution from call, SMS, and other basic services to those more abundant and complicated functions, such as: mobile browser, games and entertainment, mobile commerce and video services, and also the mobile education which develops rapidly up under the needs of a large number of students and white-collar users. Many of the digital files in these applications are provided by some CP, and their copyright should be protected, especially those courseware in the mobile education applications. However, on the other side, current mobile terminals mostly have Bluetooth, infrared and other convenient and powerful transmission functions, and this will make it possible that download files can be arbitrary spread among users. So a copyright crisis appears. Therefore, this paper designed a model which is to be embedded in mobile terminal, hoping can make sure the downloaded file can only be correctly read on a single mobile terminal. Although it can be transferred to another terminal by Bluetooth, for example, it cannot be displayed correctly. This will effectively protect the copyright of the digital file.Meanwhile, there is also another problem: the diversification of mobile services will lead to more downloaded files to terminals, but mobile terminals usually have limitations of the storage space. To solve this problem, a combination algorithm of encryption and compression are proposed in the later part of this paper. This algorithm, after embedded in the above model, can not only realize the copyright protection, but also can compress the file so as to save some storage space. This can kill two birds with one stone.Near the end of this paper, simulation experiments of this solution, which is the integration of the above model and algorithm, are demonstrated. The experiments' results and the multifaceted comparison and analysis prove that this solution is effective, efficient, smart and practical. And this will definitely promote the health and rapid development of M-commerce.