OMA DRM标准实现问题分析

In this paper, the author briefly introduced OMA DRM functional structure and its security firstly .OMA DRM using a symmetric encryption algorithm to encrypt digital content, while using PKI technology to solve the transmission security at the application layer, but it did not give the security solutions at the server-side and the client-side. Besides, the OMA DRM is based on the trusted terminal, but the actual is not true. This paper discusses the problems of the concrete realization of OMA DRM in the mobile system. And then address the issues raised above, gives some idea of possible solutions.