Research On Model Of Digital Content's Secure Trade Based On Mobile Terminal

With the development of Internet and electronic commerce, a great deal of pirate and tort about digital contents exists on Internet, so it is urgent to do something to protect copyright of digital contents. On the other hand, mobile terminals have developed fast and resource is shared more and more frequently among users of terminals so that it is also needed to realize copyright protection of digital contents in mobile terminals. However, system of the digital rights management is not perfect enough to solve the problem at present, especially in the area of mobile terminal, which is the reason that the commercial pattern of digital content has not been developed naturally.At first in this paper a model of digital content's secure trade based on personal computer is discussed. The model has the same security as general system of digital rights protection, and eliminates the shortages of the common digital rights management system: getting the decrypted key of digital content by legal user easily, lacking generality of digital content and shopping on Internet without anonymousness. Secondly at a different angle, this paper analyses the particularity of hardware, software and so on of mobile terminal, and the feasibility of transplantation from PC to mobile terminal of the secure trade model of digital content. Then the new model of secure trade of digital content has been put forwarded. This is a resolvent by only software. It doesn't only eliminate the shortages of system of common digital rights management, but also has more advantages than present system of mobile digital rights management which needs support by extra hardware. At last, the model is tested through the client software on the emulator of mobile terminal and the conclusion is that the model has the same effect as expected.At the emulating test, J2ME is used as developing program which has more advantages of transplantation and is faster at developing rapidity than other program, and plays an important role at getting the fingerprint of mobile terminal.It is trusted that the paper makes significance on the research of commercial mode of digital content's secure trade based on mobile terminal and its security.