| Summary: | 碩士 === 國立成功大學 === 電腦與通信工程研究所 === 95 === In recent years, the trend has been already progressive toward digitalization in many industries. The natures of digital content are easy to be modified and distributed. According to the problem, Digital Rights Management (DRM) is used to protect and manage digital content. Nowadays, multimedia content protected under Conditional Access Broadcasting system is not enough for commercial modes, and users can still usurp multimedia contents from Set-Top
Box. To prevent the multimedia contents from being usurped, there are some researches which focus on how to integrate DRM into CAS. However, many existing DRM systems do not consider the anonymous consumption and malicious server. In this thesis, we proposed protocols to achieve anonymous consumption and against malicious server. Furthermore, we built a DRM system compatible with OMA DRM in OpenMHP.
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