定義了多媒體公文的新概念，在分析傳統(tǒng)電子政務(wù)安全架構(gòu)的基礎(chǔ)上，提出利用數(shù)
字水印技術(shù)來提高多媒體公文的安全性，并以PDF 文檔為例介紹了如何利用數(shù)字水印技術(shù)來維護(hù)信息內(nèi)容的創(chuàng)作權(quán)，彌補(bǔ)了電子政務(wù)系統(tǒng)對數(shù)字作品版權(quán)保護(hù)的不足，設(shè)計了一種新的基于數(shù)字水印的多媒體公文安全架構(gòu)。
關(guān)鍵詞：數(shù)字水印；多媒體公文；安全架構(gòu)；電子政務(wù)
Abstract: The new concept of multimedia document was defined. According to the analysis of
traditional security architecture of E-government, a new idea about adopting the technology of digital watermarking to ensure in the security of Multimedia Document was proposed. It
introduced a way how to maintain copyright protection information in PDF documents with digital watermark technology, and made up the drawback of the digital work copyright protection in E-government system; Finally, based on the digital watermark, a new security architecture of multimedia document processing system is designed.
Key words: digital watermarking; multimedia document; security architecture; electronic
government