【摘要】：現(xiàn)代傳播媒介、寬帶技術(shù)、多媒體傳播、數(shù)字化與互聯(lián)網(wǎng)的飛速發(fā)展,使得數(shù)字化文化作品變得普及,流媒體知識(shí)產(chǎn)權(quán)的保護(hù)越發(fā)引起人們的重視。Adobe等公司相繼推出了自己的DRM解決方案。雖然DRM系統(tǒng)已經(jīng)日益被大家重視并加以開(kāi)發(fā)利用,但是通過(guò)網(wǎng)絡(luò)傳輸?shù)募用芤曨l,依然有一些亟待解決的問(wèn)題：如果用戶想從流媒體的中間開(kāi)始瀏覽,而非流媒體的開(kāi)頭,那么一般的加密系統(tǒng)只能使用戶在等流媒體全部下載到本地之后才能觀看,大大降低了用戶體驗(yàn)。另外,用戶瀏覽的內(nèi)容會(huì)存在當(dāng)?shù)鼐彺娈?dāng)中,如果此問(wèn)題得不到解決,那么版權(quán)保護(hù)只能是一紙空談。 針對(duì)現(xiàn)有的DRM解決方案,結(jié)合RSA、AES等數(shù)據(jù)加密算法,以及可供二次開(kāi)發(fā)的開(kāi)源媒體框架(OSMF)播放器,本文提出了一種基于開(kāi)源媒體框架的動(dòng)態(tài)流媒體版權(quán)保護(hù)算法。開(kāi)源媒體框架以及對(duì)媒體的碎片化處理技術(shù),使得用戶對(duì)于瀏覽內(nèi)容的動(dòng)態(tài)拖拽成為可能,同時(shí),對(duì)內(nèi)容的一次永久性加密,并且分情況授權(quán)用戶有條件的解密,使得用戶對(duì)內(nèi)容的訪問(wèn)權(quán)限僅在授權(quán)者規(guī)定的條件下適用,有效的解決了一次解密永久訪問(wèn)的情況。測(cè)試結(jié)果表明,基于開(kāi)源媒體框架(OSMF)的動(dòng)態(tài)流媒體版權(quán)保護(hù)算法不僅有效的防止了流媒體的非授權(quán)性擴(kuò)散,而且大大提高了用戶體驗(yàn)。 最后,對(duì)本論文工作進(jìn)行了總結(jié),并指出了系統(tǒng)在以后的工作中需要進(jìn)一步完善和改進(jìn)的地方。
[Abstract]:With the rapid development of modern media, broadband technology, multimedia communication, digitalization and the Internet, digital cultural works become popular. The protection of streaming media intellectual property has attracted more and more attention. Adobe and other companies have launched their own DRM solutions. Although the DRM system has been paid more and more attention to, there are still some problems that need to be solved: if users want to browse from the middle of streaming media, rather than the beginning of streaming media, there are still some problems that need to be solved urgently in the transmission of encrypted video through the network. So the general encryption system can only make users wait for streaming media to download to the local before viewing, greatly reducing the user experience. In addition, user browsing content will be stored in the local cache, if this problem is not resolved, copyright protection can only be a piece of empty talk. Aiming at the existing DRM solutions, combining with the data encryption algorithms such as RSA-AES and the (OSMF) player, an open source media framework, a dynamic streaming media copyright protection algorithm based on the open source media framework is proposed in this paper. The open source media framework and the fragmentation of the media make it possible for users to dynamically drag and drop the content, at the same time, encrypt the content once and for all, and authorize the user to decrypt it conditionally. Make the user access to the content only under the conditions specified by the licensor, effectively solve the situation of a decryption of permanent access. The test results show that the dynamic streaming media copyright protection algorithm based on open source media framework (OSMF) not only effectively prevents the unauthorized proliferation of streaming media, but also greatly improves the user experience. Finally, the paper summarizes the work of this paper, and points out that the system needs further improvement in the future work.
【學(xué)位授予單位】：北京郵電大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TP309;TP311.52

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本文編號(hào)：2172581