云媒体社交网络下的数字媒体内容安全与版权保护

新兴的云媒体社交网络进一步加剧了数字媒体内容（权利）的滥用和恶意传播，而现有数字媒体版权保护系统的安全、可信、可控理论和方法，又无法满足这一新兴互联网应用的需要，亟待解决。本项目紧密围绕影响数字媒体版权保护的三要素，即媒体内容访问控制、媒体终端可信接入和媒体权利安全传播，分别从云媒体服务层、媒体网络接入层和用户社交网络层，探索新兴互联网应用下的数字版权管理关键技术。重点研究基于密码方法的云媒体内容安全访问控制机制、边缘云媒体移动终端可信接入安全协议，以及媒体权利潜在传播路径发现及其安全风险评估等。本研究对实现云媒体内容安全与版权保护，以及媒体权利的合理分享和可控传播，具有重要基础理论意义，对促进数字媒体内容平台和产业健康、良性发展，具有良好的应用前景和实用价值。

The emerging cloud media social networks have significantly spurred the misuse and malicious dissemination of digital media contents (rights) among users. However, the theories and methods for security, trustworthiness, controllability of digital media rights management systems available do not meet the requirements of the novel Internet application, which is an urgent problem to solve. The project centers on three essential factors that affect on the implementation of digital media copyrights protection, that is media content access control, media terminal trusted admission and media rights secure distribution, as well as explores the key technologies of DRM, from three layers of cloud media services, media networks admission and user social networks, respectively. The project emphasizes the following research works, such as the cryptographic-based media contents secure access control mechanisms, the trusted admission secure protocols for mobile terminals accessing to marginal cloud media, the finding of media rights potential paths and its security risk assessment. The research has important significances on application theory of foundations in realizing the cloud media contents security and copyrights protection, in combination with the media rights legal sharing and controllable dissemination, while it has great application prospects and values on digital media platform establishment as well as healthy and benign industry progress.