【摘要】 介绍了在交互式移动多媒体广播中起关键作用的服务购买与保护技术IPDCSPP,它专门针对资源受限的移动终端进行了优化。其中重点介绍遵从该规范的OSF机制,包括OSF的流程以及架构。最后介绍一种符合OSF规范的J2ME平台上的AES加密算法。更多还原

【Abstract】 This paper introduces the important key technology of IPDC SPP for interactive mobile multimedia broadcast. The SPP is optimized for resource-constraint mobile terminal. This paper focuses on the OSF mechanism, including the process and architecture of OSF. Finally, an AES recommended algorithm based on J2ME is introduced, which complies with the OSF specification.更多还原